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KJ

Keith Jarrett (born May 8, 1945) is an American pianist and composer recognized for pioneering extended solo improvisations in and interpretations of classical repertoire. A who debuted publicly at age seven, Jarrett gained prominence through collaborations with and his 1975 live album , which achieved commercial success as one of the highest-selling solo piano recordings in history due to its spontaneous, structurally coherent performances blending , blues, gospel, and classical elements. His career, spanning over six decades, includes multiple Grammy nominations, the 2003 for contributions to both and classical fields, and a rigorous approach emphasizing unprepared that has influenced generations of musicians, though he has faced health setbacks including chronic fatigue syndrome limiting performances since 2017. Jarrett's discography on features innovative trio work, original compositions, and Bach transcriptions, underscoring his technical mastery and rejection of electronic augmentation in favor of acoustic purity.

People

Entertainment figures

Keneti James "KJ" Apa (born June 17, 1997) is a actor of Samoan, Scottish, and English descent, best known for starring as in drama series from 2017 to 2023. He began his acting career in 2013 portraying high school student Kane Jenkins in the , a role created to address rates in the country. Apa has since appeared in films such as (2018) and One Fast Move (2024), and released music as a singer, including the single "Friends" in 2017. Khaneshia "KJ" Smith, known professionally as KJ Smith, is an actress raised in , and a graduate of . She gained prominence through roles in productions, including Andrea "Andi" Barnes in the Why Did I Get Married? film series and its spin-off For Better or Worse, as well as appearances in The Quad and Sistas on . Smith joined the cast of Power Book III: Raising Kanan in a recurring role for its second season in 2022. Kendrick Kang-Joh "Ken" Jeong (born July 13, 1969) is an American actor, comedian, and retired physician who transitioned to full-time entertainment after practicing medicine. He rose to fame portraying the eccentric gangster Leslie Chow in The Hangover trilogy (2009–2013) and Ben Chang in the NBC sitcom Community (2009–2015). Jeong's career includes stand-up comedy, hosting The Masked Singer since 2019, and films like Crazy Rich Asians (2018). Karan Johar is an Indian filmmaker, producer, and media personality who heads , a leading Bollywood studio founded by his father . He directed debut feature (1998), which grossed over ₹1.1 billion worldwide, and subsequent hits like Kabhi Khushi Kabhie Gham... (2001) and (2010). Johar has produced over 30 films, often emphasizing family dramas and musicals, and hosts the since 2004.

Sports figures

Kevin Johnson (born March 4, 1966) is an American former professional basketball player who competed as a in the (NBA) for 12 seasons, primarily with the from 1987 to 1998 and briefly in 2000. Drafted 7th overall in the first round of the by the before being traded to Phoenix, Johnson averaged 17.1 points and 10.5 assists per game over his career, earning three selections in 1990, 1991, and 1994. He led the Suns to the in 1993, where they lost to the , and ranked among the league's top assist providers, finishing with 5,901 career assists. K. J. Wright (born July 23, 1989) is an American former professional football player who spent 11 seasons as an outside linebacker in the NFL, mainly with the Seattle Seahawks from 2011 to 2020, followed by stints with the Las Vegas Raiders and San Francisco 49ers. Selected in the fourth round of the 2011 NFL draft out of Mississippi State, Wright contributed to the Seahawks' Super Bowl XLVIII victory over the Denver Broncos in 2014, recording 618 solo tackles and 13.5 sacks across his career. He earned a Pro Bowl nod in 2016 and later transitioned to coaching, joining the 49ers as a defensive quality control coach. K. J. Choi is a South Korean professional golfer who has secured eight victories on the , highlighted by the 2011 AT&T Pebble Beach National Pro-Am, and amassed 33 international wins overall. Joining the in 2000 after success on the Asian and Japanese tours, Choi became the first to win on both the and DP World Tour, with additional triumphs on the including the 2021 PURE Insurance Championship and the 2024 . His career features 68 top-10 finishes on the across 498 starts, establishing him as a pioneer for golfers in professional circuits.

Business and media personalities

(born Kristen Mary Houghton, November 5, 1955) is an American businesswoman and media personality recognized for overseeing the commercial aspects of the Kardashian-Jenner family brand. She established Jenner Communications, a in , and played a pivotal role in developing the reality television series , which premiered on E! in 2007 and generated over $100 million in annual revenue for the family at its peak. Jenner has negotiated endorsement deals and licensing agreements for her children, contributing to the family's collective net worth exceeding $2 billion as of 2023. Kylie Jenner (born Kylie Kristen Jenner, August 10, 1997) is an American entrepreneur and media personality who founded in 2015, initially with a line of lip kits that expanded into a full brand by 2016. The company achieved $420 million in sales within its first 18 months and reached a valuation of $900 million when Jenner sold a 51% stake to Coty Inc. for $600 million in 2019. She later introduced Kylie Skin in 2019 and Kylie Baby in 2021, diversifying into skincare and infant products, with her personal net worth estimated at $680 million as of 2023, primarily from these ventures. Kendall Jenner (born Kendall Nicole Jenner, November 3, 1995) is an personality and model who ventured into business with the launch of 818 on May 21, 2021, a produced from 100% Blue Weber agaves in , . The tequila received double gold medals at the World Spirits Competition in 2022 and has emphasized , including carbon-neutral production certified by ClimatePartner. Jenner's involvement extends to and , positioning 818 as a premium spirit with annual sales contributing to her estimated $45 million net worth in 2023. Ken Jennings (born Kenneth Wayne Jennings III, May 23, 1974) is an American media personality and author best known for holding the record of 74 consecutive wins on Jeopardy! from November 2004 to January 2005, earning $2.52 million in prizes. He transitioned to hosting the syndicated quiz show in 2021 following Alex Trebek's death, co-hosting initially before becoming the permanent host for regular episodes; as of 2025, he has received Emmy nominations for Outstanding Game Show Host in 2023, 2024, and 2025. Jennings has authored books on trivia and history, including Maphead (2013) and Planet Funny (2018), and contributes to media through writing and consulting.

Other notable individuals

Karl Jaspers (1883–1969) was a German-Swiss philosopher and psychiatrist whose work bridged and existential thought. Beginning his career in medicine at the University of Heidelberg, where he earned his in 1908 and habilitated in 1913 with a on psychoses, Jaspers later transitioned to philosophy, emphasizing the subjective limits of scientific explanation and the role of "limit situations" like death and guilt in revealing human existence. His major philosophical text, (1932), delineates three levels of experience—orientation in the , existential elucidation, and the encompassing—arguing that ultimate reality transcends objective knowledge, influencing subsequent thinkers in and . Jaspers' critique of Nazi led to his brief dismissal from in 1937, though he resumed teaching post-war, advocating for a "world philosophy" grounded in communication across civilizations. Keith Joseph, Baron Joseph (1918–1994), was a Conservative politician and who played a pivotal role in advancing free-market reforms within the party. Elected MP for Leeds North East in 1956, he held cabinet positions including for (1970–1974) and for (1979–1981), where he promoted and to combat . A close ally of , Joseph co-founded the in 1974 to critique Keynesian interventionism, arguing in speeches and writings that excessive state welfare eroded personal responsibility and enterprise. His 1974 self-disqualification from leadership contention after controversial remarks on underclass breeding underscored his commitment to but empirically driven , influencing the 1979 Conservative manifesto.

Other uses

Scientific and technical terms

The kilojoule (kJ), sometimes denoted as KJ, is a derived unit of in the (), equivalent to one thousand joules (J = ·m²·s⁻²). It quantifies mechanical work, , and other energy forms in physics and engineering applications, such as calculating power output where 1 watt-hour equals 3.6 kJ. In chemistry, it measures reaction enthalpies and activation energies, often expressed per mole (kJ/mol); for instance, standard enthalpy changes are reported in this unit to reflect absorbed or released during bond formation or breaking. Kilojoules are standard for nutritional labeling in regions like and the , where food energy content is listed alongside or instead of kilocalories (1 kJ ≈ 0.239 kcal). This usage stems from the joule's definition via the mechanical equivalent of heat, ensuring consistency with thermodynamic principles. In , KJ occasionally abbreviates "knee jerk," denoting the monosynaptic () tested via percussion to assess neural integrity, though this is less formalized in peer-reviewed compared to energy metrics. Niche contexts may reference KJ as "key joint" for structural connections, but such usage lacks widespread standardization.

Organizations and brands

Congregation Kehilath Jeshurun (KJ) is an Orthodox Jewish synagogue founded in 1872 and situated on Manhattan's . The KJ Choi Foundation, established by professional golfer , provides educational experiences and opportunities for underprivileged youth, including youth tournaments. KJ International Resources (KJI) operated as a global provider of translation and localization services until its acquisition by United Language Group on June 8, 2016.

Fictional and cultural references

In the series (2015–2019), written by and illustrated by Cliff Chiang, KJ (Karina J. Brandman) is one of four pre-adolescent protagonists delivering newspapers in 1988 suburban Stonybrook, , who become entangled in time-travel conflicts involving future technology and warring factions. Depicted as a Jewish player from an affluent family attending Buttonwood Academy, KJ serves as the group's intellectual anchor, wielding her as a weapon and grappling with personal identity, including her eventual self-realization as amid the narrative's multigenerational arcs. The character recurs across all 30 issues, with the series adapted into a 2022 television program retaining her core traits. KJ also appears as a recurring animated protagonist in the online "KJ Saga," originating from the 2018 YouTube short "Slap" by animator Da Sassy Owl (), produced within the Hyun's Dojo stick-fighting community. Portrayed as a 25-year-old stickman with "K" and "J" eyes, capable of escalating to reality-warping feats like matter manipulation and erasure in fan-extended lore, the character features in subsequent animations by creators including and KiloJoule, emphasizing brutal fights triggered by provocations such as phone damage. This KJ has permeated niche internet subcultures, inspiring Roblox game integrations like The Strongest Battlegrounds movesets and versus battle discussions, though remaining confined to amateur animation rather than commercial media.

References

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