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Tsunku

Tsunku (born Mitsuo Terada on October 29, 1968, in , , ) is a , , , , and entertainment executive, best known for his pivotal role in shaping through the formation and production of the idol supergroup and the broader collective. Terada, who adopted the stage name Tsunku♂, began his music career in 1988 and debuted as the lead vocalist of the rock band Sharam Q in 1992; the group achieved massive commercial success in the mid-1990s, with four of their singles selling over a million copies each in . Transitioning from performing to production in the late 1990s, Tsunku founded in 1997 after an open audition process, transforming the nine selected participants into one of 's most iconic and enduring idol groups, with hits like "Love Machine" and "Happy Summer Wedding" that he wrote and produced. Under his guidance, pioneered the "" system for members and spawned numerous subgroups, solidifying as a powerhouse in the idol industry. As the founder and president of TNX Ltd., a comprehensive entertainment company established in 2006, Tsunku has overseen the careers of dozens of J-pop artists and expanded into video game composition, notably contributing to Nintendo's Rhythm Heaven series since 2006, with the series selling over 5 million copies worldwide. In 2014, he was diagnosed with a recurrence of laryngeal cancer, leading to the removal of his vocal cords in 2015, which ended his singing career but did not halt his production work. Despite this, Tsunku remains active, announcing in March 2025 his return as composer for the upcoming Rhythm Heaven Groove on Nintendo Switch, set for release in 2026.

Early life and background

Childhood and education

Tsunku, born Mitsuo Terada on October 29, 1968, in , , , grew up in the bustling industrial area of , fostering an independent streak amid everyday urban life. From a young age, Terada showed an interest in music. His exposure to and Western pop came through radio broadcasts and family influences, with early favorites including Japanese popular songs and international acts like . Terada attended local schools in , where his passion for music increasingly overshadowed traditional academic paths. Despite the conventional expectations, he prioritized musical exploration during his high school years, listening avidly to influences like alongside and . This led him to enroll at Kinki University, from which he graduated in 1991, balancing studies with his growing commitment to music as a career.

Initial musical pursuits

During his school years in , Tsunku, born Terada Mitsuo, developed his musical interests by teaching himself to play guitar after discovering a broken classical at home, which he restrung and began practicing around . Motivated by an upcoming in his third year of junior high, he dedicated approximately two months to daily practice, enabling his first public performance where he sang and accompanied himself on guitar with covers of songs like "Hatsukoi" by Kosaku Murashita and "Nagai Yoru" by Chiharu Matsuyama. This self-directed learning laid the foundation for his hands-on approach to music, focusing initially on folk-influenced styles before expanding into rock and pop experimentation through original compositions. In high school during the mid-1980s, Tsunku formed his first amateur band, Ran (also stylized as RAM), performing locally in as part of the burgeoning underground scene. By 1988, while attending , he united members from Ran with those from two other amateur bands—Shaddaz (Shutterz) and —to create the rock band Sharam Q, blending their influences into a group name derived from elements of each (Sha from Shaddaz, Ran from Ran, Q from QP). The band honed their rock-oriented sound through songwriting experiments that incorporated pop sensibilities, drawing from Tsunku's growing repertoire as and . Throughout the late 1980s, Sharam Q built a following with small gigs at Osaka's live houses and street performances, including events at Park's Shiroten stage, where the band distributed flyers to draw crowds and gradually gained venue support. These amateur efforts, centered in their hometown, emphasized energetic rock performances and original material, fostering Tsunku's skills in arrangement and audience engagement without formal training. Seeking broader opportunities, Tsunku and Sharam Q relocated to in 1992 after securing a major label contract with BMG Victor, following a win at the BS Young Battle competition the previous year.

Career trajectory

Sharam Q and breakthrough

Sharam Q was formed in December 1988 in by aspiring musicians from three amateur bands: Shatters, Ran, and QP. The core lineup consisted of Tsunku as lead vocalist and primary songwriter, Hatake on guitar and serving as band leader, on drums, and Taisei on keyboards; bassist Shuu, an initial member, departed before the band's major debut. Drawing from their university connections at , the group honed a distinctive sound blending rock and pop elements with Tsunku's signature humorous and relatable lyrics, often exploring everyday themes like relationships and youthful struggles. Their early performances in Kansai live houses built a following, culminating in a 1991 NHK-BS Young Battle Grand Prix win for the song "Ramen Daisuki Koike-san's Uta" among over 3,400 entries. The band achieved their major-label debut on July 22, 1992, with the double A-side single "18 Kagetsu / Ojousama," released under BMG Funhouse, marking Tsunku's emergence as a charismatic frontman whose energetic stage presence complemented his witty compositions. Follow-up singles like "Tottemo Merry-Go-Round" (February 24, 1993) and "Tomodachi wa Imasu ka" (May 8, 1993) gained modest radio airplay, while their second , Urekko e no Michi, Joutai Naka (March 24, 1993), showcased their evolving of upbeat pop-rock tracks with satirical humor, such as the title track's playful nod to the music industry's hustle. These releases established Sharam Q's niche in the burgeoning J-rock scene, supported by regional tours like the "Urekko e no Michi Shibutai Chu Tour '93" (February–March 1993) and "Gekidō Live Nippon Rettō Tour '93 Summer" (July–August 1993), which drew enthusiastic crowds and solidified their live reputation. Sharam Q's breakthrough arrived in 1994 with the single "Jōkyō Monogatari" (January 21, 1994), which surpassed 100,000 sales and peaked at No. 47 on the charts, followed by the explosive hit "Single Bed" (October 21, 1994). The latter, tied to the D·N·A², sold over 1 million copies, propelling the band to national stardom and highlighting Tsunku's knack for crafting infectious, lighthearted anthems about modern romance. This momentum carried into 1995, with the single "Zurui Onna" (May 3, 1995) becoming another million-seller and earning prestigious accolades, including the Japan Record Award and All Japan Cable Award; its cheeky lyrics about betrayal resonated widely, cementing Tsunku's songwriting prowess. This was followed by "Iiwake" (October 25, 1995), their third consecutive million-selling single. Key albums during this period, such as Lost Time (February 23, 1994) and Rettoukan (July 1, 1995), further blended rock-driven energy with pop accessibility and humorous narratives, achieving strong placements and contributing to the band's commercial ascent. At their mid-1990s peak from 1994 to 1996, Sharam Q dominated the Oricon charts with multiple top entries, including the No. 1 single "Namida no Kage" (July 24, 1996) and the chart-topping album GOLDEN Q (December 18, 1996), while Gambler (November 22, 1995) also exceeded 1 million sales. Tsunku's dual role as performer and creative force drove their appeal, with three consecutive appearances on NHK's prestigious Kōhaku Uta Gassen (1995–1997) underscoring their cultural impact. Extensive live tours amplified this success, including the nationwide "Live Tour '94 Summer no Ran Muda" (August–September 1994), "Live Tour '95 Summer no Ran Zekkōchō" (July–September 1995), and the ambitious "Live Tour '96 Spring no Ran Shinken Shōbu" (January–May 1996), which featured sold-out three-night stands at Nippon Budokan, drawing tens of thousands and showcasing Tsunku's dynamic vocals amid the band's high-energy sets.

Transition to production

Following the departure of Sharam Q's bassist in December 1998, the band's activities significantly slowed, with only one new single, "Kimi wa Majutsushi?", released in February 1999, alongside a best-of in March. This period marked a pause in group endeavors, culminating in an official announcement of indefinite hiatus on December 1, 2000, during a , as the members pursued individual paths. The success of Sharam Q, which had produced three million-selling singles—"Single Bed", "Zurui Onna", and "Iiwake"—in the mid-1990s, had established Tsunku's reputation as a songwriter and performer, lending him substantial industry credibility to pivot toward production roles. Tsunku's first major production credits emerged through collaborations with Up-Front Agency, including his oversight of the rock band 7HOUSE, which debuted on January 21, 1999, under the zetima label with the "STOP - Nakanaide -". He also contributed to solo projects within the agency's roster, such as assuming production duties for singer Heike Michiyo's releases starting in 2000, blending rock influences with emerging pop sensibilities. These efforts represented Tsunku's initial foray into guiding new artists, leveraging Up-Front's infrastructure to explore structured songwriting and arrangement techniques beyond his band experience. In parallel, Tsunku signed with and released his debut solo single, "Love Dakiatte", on April 28, 1999, as a with 7HOUSE; the track served as the theme for the drama Mō Nannōkai Kore Kara Demo Ai o Shinjite Ī?. This release, produced under , showcased Tsunku's vocal and compositional style in a more accessible format, incorporating duet elements with emerging talent like on the coupling track "Love since 1999". These late-1990s ventures allowed Tsunku to experiment with idol pop production, integrating catchy melodies and group dynamics into rock foundations, which honed his approach for broader-scale artist development.

Hello! Project involvement

Founding and core productions

In 1997, Tsunku organized auditions on the Japanese television program Asayan to find a female backup vocalist for his band Sharam Q, but instead selected five young women from the applicants to form the idol group . The group earned a major label debut after selling 50,000 copies of their independent single "Ai no Tane" in four days, leading to their official major debut on January 28, 1998, with the single "Morning Coffee," produced and written by Tsunku. Under Tsunku's production, achieved over 30 consecutive top 10 singles on the charts, including 21 number-one hits, establishing them as a dominant force in music. A key example was their 1999 single "Love Machine," which Tsunku wrote and produced, topping the charts for three weeks and selling over 1.2 million copies, marking one of the group's biggest commercial successes. This era of consistent chart performance highlighted Tsunku's songwriting approach, blending upbeat pop with accessible lyrics to appeal to a wide audience. Tsunku expanded by creating sub-groups from members and affiliated talents, overseeing their productions to diversify the collective's output. In 1999, he formed Petit Moni with three members, producing their debut single "Chokotto LOVE," a playful hit that reached number one on . In 2000, he established as a height-themed unit featuring shorter-statured members, including 's Yaguchi Mari, Tsuji Nozomi, and Kago Ai, with Tsunku composing their bubbly tracks for children's programming. By 2003, Tsunku launched from the Kids trainee group, producing their energetic songs to introduce younger talents. Overall, singles produced by Tsunku for groups sold approximately 37.9 million units.

Management and key achievements

Tsunku served as the comprehensive producer and general manager of , a role he assumed upon the collective's formal establishment in 1999 under Up-Front Promotion, where he directed the artistic and operational direction of its various acts. In this capacity, he personally oversaw high-profile auditions, including the Kids audition held between April and June 2002, which drew over 27,000 applicants and ultimately selected 15 girls under the age of 12 to form the group's junior unit. This initiative exemplified his strategy to cultivate young talent within a structured training system, laying the groundwork for future expansions. Under Tsunku's leadership, grew significantly through the addition of new groups and collaborative events, such as annual concerts that showcased multiple acts in large-scale performances. Notable expansions included the formation of °C-ute in June 2005, comprising seven members from the remaining Kids not selected for , and S/mileage in April 2009, an indie unit drawn from four Hello! Pro Egg trainees with a mission-based debut concept involving collecting smiles to secure a major label release. These developments, along with acts like , diversified the project's roster and emphasized ensemble dynamics over individual solo careers. Tsunku's managerial efforts contributed to the project's commercial success, with groups receiving multiple in the 2000s for top-selling albums and singles. In October 2014, following the '14 Live Concert in , Tsunku stepped down as general manager to focus on health and family, with the resignation publicly revealed in 2015 through his ; he transitioned to an advisory role while retaining involvement in select productions like those for , continuing as their sound producer as of 2024.

Post-Hello! Project endeavors

Independent projects and TNX

Following his departure from direct management of in 2014, Tsunku shifted focus to independent ventures while maintaining ties to . In October 2006, Tsunku founded TNX Inc., a and company operating as a of , with the name abbreviating "thanks" to reflect gratitude toward collaborators and fans. Headquartered in Takanawa, , TNX specialized in producing music for emerging artists outside the core framework, emphasizing pop and idol genres. Under TNX, Tsunku launched the Nice Girl Project! on October 15, 2007, a collective aimed at developing young female talent through auditions and training, with full activities commencing in April 2008. The project ran until 2015 and included groups such as Canary Club, which debuted in 2008 and released singles on TNX's Good label, focusing on upbeat pop tracks to cultivate new performers. In 2015, Nice Girl Project!'s activities ended, with all information and from Nice Girl Project! removed from TNX's official website. Tsunku also pursued solo endeavors through TNX, releasing his fourth single, "Shoppai ne" (しょっぱいね; Salty Tears), on September 26, 2012, which charted at number 184 on the weekly singles ranking. This track, blending introspective lyrics with his signature melodic style, marked a personal artistic outlet amid his production work. In the , Tsunku collaborated with independent artists on select projects, including contributions to acts and one-off recordings that expanded his reach beyond major labels. Beyond idol productions, Tsunku composed for non-Hello! Project acts, notably providing music for soundtracks in the , such as themes for the series (2016–2018), where he crafted orchestral-pop fusions inspired by classical composers. These efforts included one-off projects like tracks for emerging soloists and tie-ins, showcasing his versatility in adapting to narrative-driven media. In March 2025, Tsunku announced his return as music producer for the soundtrack of Groove, a new entry in the series set for 2026 release on Switch, building on his prior contributions to the franchise.

Health challenges and adaptations

In March 2014, Tsunku was diagnosed with stage II after experiencing persistent hoarseness since October 2013, which prompted exploratory throat surgery revealing the condition. He immediately began treatment with and , achieving complete remission by September 2014, as announced on his personal . The cancer recurred later that year, leading to a life-saving total in April 2015, during which his were surgically removed. This procedure rendered him unable to speak or sing naturally, profoundly impacting his role as a performer. In the immediate aftermath, Tsunku adapted by relying on written communication tools, including computers and messaging apps like LINE, to interact in professional and personal settings. Over time, he pursued rehabilitation to develop —a technique involving air from the to produce sound—allowing limited verbal communication without mechanical aids by mid-2016. These adaptations enabled him to redirect his energies toward behind-the-scenes production, composition, and , areas where his vocal abilities were not essential. Tsunku publicly disclosed the vocal cord removal during a surprise appearance at a high school entrance ceremony in on April 4, 2015, where his pre-written message was projected on a screen and read aloud by the host, explaining his condition and commitment to living fully despite the loss. The announcement stunned and moved attendees and fans alike, sparking an outpouring of support through messages, fan letters, and online campaigns expressing solidarity and admiration for his . In September 2015, Tsunku released his Dakara, Ikiru (Therefore, I Live), a candid account chronicling his battle with cancer, the surgery, and his philosophical reflections on survival and purpose, which further highlighted his recovery journey and garnered positive reception from readers and the music community. Despite the health setbacks, he sustained his career momentum by emphasizing non-performing roles, including songwriting and producing for various artists, as well as launching independent initiatives through his company TNX, demonstrating his enduring influence in the industry.

Other professional activities

Video game contributions

Tsunku played a pivotal role in the development of the Rhythm Heaven series, beginning with the co-creation of Rhythm Tengoku for the Game Boy Advance in 2006. As producer and music composer, he collaborated closely with Nintendo's development team, including the group behind WarioWare, to integrate rhythmic gameplay with original J-pop tracks. His contributions included composing key songs for the game's minigames. This involvement stemmed from Tsunku's initial proposal to Nintendo, where he envisioned a music-driven game that emphasized intuitive button presses synced to upbeat melodies, without on-screen prompts. Tsunku extended his soundtrack production to subsequent entries, including Rhythm Heaven for the in 2008, Rhythm Heaven Fever for the in 2011, and Rhythm Heaven Megamix for the in 2015. For the DS title, he composed and produced much of the music, blending pop rhythms with whimsical sound effects to enhance the 50 mini-games' replayability. The Wii installment similarly showcased his work, where he served as music , singer on select tracks, and , incorporating vocal elements and remixes that captured the series' energetic vibe. For the 3DS entry, he continued as , providing music for over 100 minigames and new content despite his recent health challenges. These soundtracks emphasized Tsunku's signature upbeat , with rhythms that directly influenced player actions like tapping and motion controls. Throughout the series, Tsunku's collaboration with tied music to core , ensuring that tracks not only provided auditory cues but also shaped the "groove-sense" essential for success. He advised developers on fundamentals, even recommending training to align the team's understanding with his musical vision, resulting in over 50 tracks across the early games that balanced accessibility and difficulty. This integration helped the series sell millions, with alone exceeding 1.5 million units in . In March 2025, Tsunku confirmed his return for the series' next installment, : Groove, announced during a on March 27 and slated for release in 2026. This marks his continued involvement in producing fresh tracks and overseeing musical elements for the new entry.

Television and media roles

Tsunku gained prominence in television through his role on the Asayan, which aired from 1995 to 2002 on . As the host and judge, he oversaw auditions that discovered talent for music projects, most notably selecting the original members of . in 1997, leading to the group's debut single challenge to sell 50,000 copies. In addition to hosting, Tsunku ventured into acting with a supporting role as Komine Takuro in the 2003 Japanese drama Mukodono 2003, a family-oriented series broadcast on Fuji TV. He also made his voice-acting debut in 2009, voicing the character Nijūkyu-sensei, advisor of the club, in the adaptation Gokujō!! Mecha Mote Iinchō, for which he also composed the theme songs. During the 2000s, Tsunku made regular guest appearances on music programs, including a performance slot on in December 1999 as part of Sharam Q, where he showcased his evolving role in alongside emerging idol acts tied to . Following his 2014 laryngeal cancer treatment, which resulted in the removal of his and loss of speech, Tsunku adapted to non-speaking formats in guest appearances on variety shows starting in 2015. For instance, on the long-running talk show Tetsuko no Heya in March 2016—his first appearance in 11 years—he communicated via a computer tablet, typing responses displayed on a studio monitor to discuss his career and recovery.

Personal life

Family and relationships

Tsunku married Kanako Idemitsu, a former model from Fukuoka, on June 8, 2006. The couple welcomed fraternal twins—a boy and a girl—in 2008. Their second daughter was born on March 16, 2011. The family has played a supportive role in Tsunku's professional life, including relocating to , , in July 2016 to facilitate his international endeavors and provide the children with enhanced educational opportunities as global citizens. To maintain privacy, Tsunku has refrained from publicizing his children's names or personal details, emphasizing a low-profile family environment amid his high-visibility career. Public insights into their family life have been limited to occasional mentions, such as Tsunku's blog announcements of the children's births, which highlighted his joy as a without further elaboration.

Health and lifestyle

Prior to 2014, Tsunku maintained a demanding lifestyle as a and , which included heavy and frequent consumption that contributed to chronic strain on his . He later reflected on being unaware of how these habits exacerbated throat issues amid his intense work schedule. Following his vocal cord removal surgery, Tsunku underwent extensive speech therapy focused on techniques, allowing him to regain communication abilities by vibrating the esophageal lining with swallowed air. He also adapted his diet to manage swallowing difficulties, as small food particles would often lodge in his throat, causing nasal of liquids and requiring careful chewing and smaller portions. Tsunku has actively advocated for health awareness by sharing his experiences in interviews and his 2015 book Dakara, Ikiru (Therefore, Live), emphasizing early detection and modifications like quitting to prevent similar issues. On social media platforms such as X (formerly ), he has posted about the benefits of cessation, noting improvements in physical recovery after stopping tobacco use. Since 2016, he has embraced a quieter family-oriented life in , occasionally referencing simple outings in during work visits.

Artistic style and influences

Key influences

Tsunku's musical development was profoundly shaped by a blend of Western and Japanese influences encountered during his formative years. A primary inspiration was , whose innovative melodic structures and group dynamics captivated him from a young age, forming a cornerstone of his approach to pop songcraft. Growing up in , he immersed himself in these sounds alongside local and international radio broadcasts, which broadened his appreciation for harmonious ensemble performances. Japanese , the popular music genre prevalent in post-war Japan, played a pivotal role in grounding Tsunku's style in national traditions. This foundation was complemented by Western disco acts, such as and , whose rhythmic energy he absorbed during high school through daily listens to American and European hits, infusing his work with upbeat, dance-oriented vibes. The 1980s wave further enriched Tsunku's palette, with electronic textures and stylish production that resonated during his adolescence. Additionally, the cultural milieu of , renowned for its vibrant comedy duos featuring quick-witted banter and humorous exaggeration, subtly informed his playful lyrical sensibilities, reflecting the region's lively entertainment heritage. Other influences include and the 1980s idol group .

Composition and lyrical techniques

Tsunku's composition style is defined by a preference for catchy, upbeat pop melodies constructed with simple progressions and infectious hooks that prioritize accessibility and immediate appeal. He begins the songwriting by grabbing a guitar and recording initial ideas on a portable to capture spontaneous , then develops a basic to refine the and . This ensures the music remains straightforward yet engaging, tailored for live performances and fan interaction in contexts. In the , Tsunku evolved his sound by incorporating elements of and into his productions, particularly for groups, blending traditional with contemporary electronic beats to refresh the genre and attract younger listeners. This shift added layers of synthesized rhythms and drops, expanding the while maintaining his core pop foundation. His lyrical techniques revolve around themes of , perseverance, and humor, often conveyed through relatable narratives that inspire and entertain. To enhance memorability, he frequently uses repetitive phrases that encourage chanting and group participation, a hallmark of his idol-oriented songwriting. These elements create an emotional connection, emphasizing in youth and light-hearted romance. In his idol productions, Tsunku employs group harmonies to build layered vocal textures, allowing multiple members to contribute to rich, choral effects that amplify the songs' energetic feel.

Legacy and discography

Cultural impact and recognition

Tsunku's pioneering role in the modern system has profoundly shaped and idol culture, particularly through his development of , which introduced innovative concepts like audition-based group formation and frequent member rotations in acts such as . This model emphasized collective performance and fan engagement, laying the groundwork for the expansive, multi-team structure seen in later groups like , whose producer Akimoto Yasushi shares a close professional friendship with Tsunku. With production credits exceeding 2,000 songs registered with JASRAC, Tsunku's output has driven massive commercial success in the industry, including multiple million-selling hits from his band Sharam Q and releases that collectively sold tens of millions of units; the singles he has written exceed 37.9 million copies sold, making him the fifth best-selling lyricist in . His recognition includes numerous accolades, such as the Most Requested Singer Award and Best Song Award at the 29th Japan Cable Awards for Sharam Q tracks, as well as the Composer Award at the 57th in 2015 for "Umaretekite Kurete Arigatou" by Kumiko Endo; in the 2020s, his enduring influence has been honored through ongoing roles as a and , including his announced return in March 2025 as composer for the game Rhythm Heaven: Groove, set for 2026 release. Through his lyrics and group formations in , Tsunku has promoted themes of female empowerment, crafting songs that highlight determination, self-reliance, and relational bonds among women, as exemplified in tracks like "Love Theory: The Determined Woman," which celebrates resolute female agency.

Solo albums and singles

Tsunku's solo consists of six albums and several singles released under his own name or stylized as tsunku♂, primarily through labels associated with such as Zetima and later his own TNX imprint, with some under Piccolon. These releases span covers, original compositions, and compilations reflecting his personal artistic output, often blending rock, pop, and nostalgic elements. His solo work peaked in the mid-2000s before a hiatus, resuming with singles in the that incorporated reflections on and life after his 2014 throat cancer diagnosis. The debut album, A Hard Day's Night, released on December 6, 2000, by Zetima, is a Beatles-inspired cover album featuring faithful renditions of tracks like "Help!" and "Yesterday," showcasing Tsunku's vocal style and admiration for the band. It did not enter the Oricon charts significantly, marking an experimental start to his solo endeavors. In 2001, Tsunku issued the compilation Tsunku BEST Utaite, Sakkachi no Dreamer, a 15-track collection on Zetima that gathered earlier solo and select works, emphasizing his singer-songwriter roots with songs like "Touch Me #1." This release served as a retrospective but achieved limited commercial success, not charting on Oricon. Take 1, his first full studio album of originals, came out on February 18, 2004, via Piccolon, containing 11 tracks including upbeat pop-rock numbers like "Koko ni Iruzee!" The album debuted at #23 on the weekly chart, selling modestly and highlighting his transition to production. The follow-up, Type2 (タイプ2), released July 13, 2005, on Piccolon, featured 11 original songs such as "Forever Anata ni Aitai" and covers like Billy Joel's "Just the Way You Are," blending with accessible melodies. It peaked at #33 on the weekly albums chart. V3 Seishun Cover (V3～青春カバー～), issued June 28, 2006, by Piccolon, focused on covers of 1970s-1980s hits from artists like and Off Course, across 15 tracks, evoking youthful nostalgia. The album reached #50 on the weekly chart, underscoring Tsunku's interpretive approach to classics. The 2007 compilation Tsunku Best Work Collection (Tsunku Best Sakuhin Shuu), released September 26 on Zetima, compiled 15 key tracks from his solo career up to that point, including "Mr. Moonlight Ai no Big Band," as a milestone marking 15 years in entertainment. It performed moderately on charts without reaching top positions. Among his singles, the debut "Touch Me," released November 3, 1999, by Zetima, was an energetic pop track that introduced his solo persona, peaking at #19 on the weekly singles chart. The solo version of "Genki o Dashite," issued in 2001 on Zetima, offered a motivational cover arrangement emphasizing perseverance, tying into his thematic style of uplifting lyrics. Later singles marked a return post-hiatus: "Tsubasa" (翼), first released digitally on May 30, 2010, by TNX, and included on the physical maxi-single released December 3, 2010, is a reflective on aspirations. "To You," out December 29, 2011, on TNX, featured emotional vocals composed with collaborator Nakajima Takahiro. The 2012 single "Shoppai ne" (しょっぱいね), released September 26 on TNX, drew from personal health experiences, reaching #184 on the weekly singles chart and serving as a poignant commentary on life's "salty" challenges.

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