Choi Yeon-jun (Korean: 최연준; born September 13, 1999), knownmononymously asYeonjun, is a South Korean singer, songwriter, and dancer. He is a member of the South Koreanboy bandTomorrow X Together, formed byBig Hit Entertainment in 2019. He debuted as a soloist in September 2024 with the song "Ggum" and released his first extended playNo Labels: Part 01 on November 7, 2025.
Choi Yeon-jun was born on September 13, 1999, inBundang District,Seongnam, South Korea, as an only child. He lived in the United States for two years to learn English before returning to South Korea.[1] After graduating fromKorean Arts High School, he enrolled in Global Cyber University.[2]
Prior to his debut, he trained underBig Hit Entertainment for four years.[3][4] Throughout his four years of training, Yeonjun became known as the company's "legendary trainee" because he consistently ranked first during monthly evaluations in dance, vocal performance and rap.[5][6][7] He is also a former trainee ofCube Entertainment.[8][9] Yeonjun also appeared as a back up dancer at2014 Melon Music Awards for a few performances.[10][11][12]
2019–present: Debut with Tomorrow X Together and solo activities
On January 10, 2019,Big Hit announced the upcoming debut of its new boy groupTomorrow X Together. Yeonjun was the first member of the lineup to be revealed, through an introductory video posted on the label's officialYouTube channel and social media.[13] On March 4, 2019, he debuted as a member of Tomorrow X Together with the release of their firstextended play (EP),The Dream Chapter: Star.[14]
In February 2022, Yeonjun featured on the single "PS5" by American singer-songwriterSalem Ilese, alongside bandmateTaehyun and Norwegian DJAlan Walker.[19] He was announced as a host forInkigayo, alongside actorsRoh Jeong-eui andSeo Bum-june, on March 15.[20] In July, Yeonjun became an ambassador for the streetwear brand Privé Alliance. He also served as a guest creative designer and released a limited capsule collection available the following month until December.[21] In November 2023, he was announced as a co-host for the year-end festivalSBS Gayo Daejeon alongsideKey andAn Yu-jin; the event was held on December 25.[22] On June 25, 2024, it was announced that Yeonjun would be hosting theSBS Gayo Daejeon's Summer Edition alongsideIve's An Yu-jin andNCT'sDoyoung.[23]
In November 2024, it was announced that Yeonjun would be hosting theSBS Gayo Daejeon for the third consecutive time.[24]
Studio MaumC announced Yeonjun as part of the artist lineup for theOST of the Coupang Play original seriesCinderella at 2 AM on August 16, 2024.[25] He contributed the song "Boyfriend", which was released on September 1.[26] On September 6, Big Hit announced Yeonjun's upcoming debut as a solo artist.[27] A video titled "Yeonjun's Mixtape Intro Film" was uploaded to theHybe Labels official YouTube channel two days later, with his September 19 debut date revealed at the end.[28] His debut was later revealed to be titled "Ggum", described as a "hip-hop track with a catchy electro sound".[29] On October 4, Yeonjun won his first music show trophy with "Ggum" onMnet'sM Countdown.[30] In November 2024, Yeonjun was named one ofGQ Korea's Men of the Year.[31]
On October 17, 2025, it was announced that Yeonjun would release his first solo album,No Labels: Part 01, on November 7.[32][33]
Yeonjun has been nicknamed "K-pop's 4th GenerationIt boy" by multiple sources,[34][35][36] and has appeared on the Korean Business Research Institute's male celebrity brand reputation list, a chart that records Korean celebrities with the most online searches and engagements. He ranked within the top 20 in November 2020,[37] and the top 30 in both February and March 2023.[38][39]
In May 2024, Yeonjun donated 50 million won to Hallym Burn Foundation, an organization dedicated to assisting firefighters in their crucial line of duty.[45]
^"Blockbuster" did not enter the Circle Digital Chart, but peaked at number 131 on the Circle Download Chart.[62]
^"Forever" did not enter the Circle Digital Chart, but peaked at number 43 on the Circle Download Chart.[62]
^"Let Me Tell You" did not enter the Circle Digital Chart, but peaked at number 40 on the Circle Download Chart.[62]
^"Do It" did not enter the Circle Digital Chart, but peaked at number 47 on the Circle Download Chart.[62]
^"Nothin' 'Bout Me" did not enter the Circle Digital Chart, but peaked at number 49 on the Circle Download Chart.[62]
^"Coma" did not enter the Circle Digital Chart, but peaked at number 45 on the Circle Download Chart.[62]
^Hosted by the Hong Kong Asia Pacific International Group and Sunway Records, the Asian Pop Music Awards bases its winners on the "Asian Pop Music Chart" which opened in September 2019.[76]
^Credited to Tomorrow X Together, but the track is a solo by Yeonjun
^TXT 연준 "연습생 생활만 4년, 멤버들 덕분에 성장통 극복" [TXT's Yeonjun "I have been a trainee for 4 years, overcoming growing pains thanks to the members"].Hankook Ilbo (in Korean). March 5, 2019.Archived from the original on March 1, 2022. RetrievedFebruary 20, 2022.
^Kim, No-eul (June 19, 2021).TXT 연준 "빅히트 전설의 연습생? 수업료는 잘 모르겠다"(유스케) [TXT Yeon-jun "Big Hit's legendary trainee? I'm not sure about the fee"].Newsen (in Korean).Archived from the original on May 4, 2023. RetrievedApril 28, 2023 – viaNaver.
^Lee, Ma-roo (September 4, 2021).자신이 가진 색의 범주를 아는 자, #연준의 얼굴 [A person who knows what color they are, the face of the #Yeon-jun].Elle Korea (in Korean).Archived from the original on June 3, 2023. RetrievedApril 28, 2023.
^abBae, Hyo-joo (January 11, 2021).라이브온' 투모로우바이투게더 연준 특별출연..최종회 관심↑(공식) ['Live On' Tomorrow x Together Yeonjun's special appearance..Final attention↑(Official)].Newsen (in Korean).Archived from the original on January 11, 2021. RetrievedJanuary 11, 2021.
^Yoon, Sang-geun (February 16, 2021).투모로우바이투게더 연준, 뉴욕패션위크 모델로 참여[공식] [[Official] TOMORROW X TOGETHER's Yeonjun participates as a model for New York Fashion Week [Official]].Star News (in Korean).Archived from the original on February 19, 2022. RetrievedFebruary 19, 2022.
^abHwang, So-young (March 15, 2022).[단독] TXT 연준·노정의·서범준, SBS '인기가요' 新MC 낙점 [[Exclusive] TXT Yeonjun, Noh Jeong-ui, and Seo Beom-jun to be selected as new MCs for SBS 'Inkigayo'] (in Korean).JTBC.Archived from the original on March 15, 2022. RetrievedMarch 15, 2022 – viaNaver.
^Ji, Min-kyung (November 22, 2023).[단독] 샤이니 키·TXT 연준·아이브 안유진, SBS '가요대전' MC 낙점 [[Exclusive] Shinee's Key, TXT's Yeonjun, and Ive's An Yu-jin selected as MCs for SBS' 'Gayo Daejeon'].Osen (in Korean).Archived from the original on November 22, 2023. RetrievedNovember 22, 2023.
^Kim, Chae-yeon (August 16, 2024).하현상→투바투 연준, '새벽 2시의 신데렐라' OST 참여 [공식] [Ha Hyun-sang→TXT Yeonjun, 'Cinderella at 2AM' OST participation [Official]] (in Korean). Osen.Archived from the original on August 21, 2024. RetrievedAugust 21, 2024 – viaNaver.
^Han, Hae-sun (September 1, 2024).TXT 연준, 첫 단독 OST 'Boyfriend' 오늘(1일) 발매..'새벽 2시의 신데렐라' 삽입 [TXT Yeonjun, first solo OST 'Boyfriend' released today (1st)..'Cinderella at 2 AM' inserted].Star News (in Korean).Archived from the original on September 1, 2024. RetrievedSeptember 8, 2024 – viaNaver.
^Kim, Hyun-seo (September 6, 2024).[단독] 투바투 연준, 9월 중 솔로 출격 [[Exclusive] TXT Yeonjun to make solo debut in September]. TV Report.Archived from the original on September 6, 2024. RetrievedSeptember 6, 2024 – viaNaver.
^Baek, Yoon-gi (October 4, 2024)."값진 1위 행복"...TXT 연준, 솔로곡 '껌'으로 음방 1위 ["Priceless #1 happiness"...TXT YEONJUN wins first place on music shows with his solo song "Gum"] (in Korean). Edaily. RetrievedOctober 4, 2024 – viaNate.
^Kim, Na-young (February 18, 2023).차은우, 2월 보이그룹 개인 브랜드평판 1위...2위 지민·3위 백현 [Cha Eun-woo tops boy group's personal brand reputation in February...Jimin 2nd, Baekhyun 3rd].MK Sports (in Korean).Archived from the original on May 3, 2023. RetrievedApril 28, 2023 – viaNaver.
^지큐 코리아 11월호 커버의 주인공 '투모로우바이투게더 연준' ['Tomorrow X Together's Yeon-jun' on the cover of GQ Korea's November issue].GQ Korea (in Korean). October 21, 2022.Archived from the original on May 2, 2023. RetrievedApril 28, 2023.
^어느 봄날에, 투모로우바이투게더 수빈과 연준 [One spring day, Tomorrow X Together's Soo-bin and Yeon-jun].W Korea (in Korean). April 3, 2023.Archived from the original on July 3, 2023. RetrievedApril 28, 2023.
^투모로우바이투게더 연준, 화보 매력 발산 [Tomorrow X Together's Yeon-jun, the charm of the photo shoot].Elle Korea (in Korean). August 20, 2021.Archived from the original on October 2, 2023. RetrievedApril 28, 2023.
^Lee, Kyung-ho (July 23, 2022).투모로우바이투게더 연준, 日패션 매거진 표지 장식! '영향력 과시' [Tomorrow X Together's Yeon-jun lands on the cover of Japanese fashion magazine to 'show off his influence'].Star News (in Korean).Archived from the original on May 1, 2023. RetrievedApril 28, 2023 – viaNaver.
^Kim, Na-hee (May 31, 2024).연준이라는 미지의 세계 [The unknown world of the Yeon-jun].Vogue Korea (in Korean).Archived from the original on May 31, 2024. RetrievedMay 31, 2024.
^Choi, Hee-jae (May 16, 2025).강유석, 가수 데뷔한다...'언슬전' 하이보이즈, '엠카' 출연 [공식] [Kang Yoo-seok, singer debut... 'Unsuljeon' Highboyz, 'M Countdown' appearance [Official]].Edaily (in Korean).Archived from the original on May 17, 2025. RetrievedMay 18, 2025 – viaNaver.
^Hwang, Hye-jin (March 17, 2019).투모로우바이투게더 연준 '인기가요' 스페셜 MC 데뷔[오늘TV] [Tomorrow X Together's Yeon-jun 'Inkigayo' Special MC Debut [Today TV]].Newsen (in Korean).Archived from the original on January 21, 2022. RetrievedJanuary 21, 2022 – viaNaver.
^Hwang, Hye-jin (December 6, 2019).'신인왕' 투모로우바이투게더 수빈X연준, 8일 '인기가요' 스페셜MC 출격 ['Rookie King' Tomorrow X Together's Soo-bin and Yon-jun, 'Inkigayo's' Special MCs on August 8th].Newsen (in Korean).Archived from the original on January 21, 2022. RetrievedJanuary 21, 2022 – viaNaver.
^Hwang, Hye-jin (March 17, 2019).투모로우바이투게더 연준 '인기가요' 스페셜 MC 데뷔[오늘TV] [Tomorrow X Together's Yeon-jun 'Inkigayo' Special MC Debut [Today TV]].Newsen (in Korean).Archived from the original on January 21, 2022. RetrievedJanuary 21, 2022 – viaNaver.
^190321 엠카운트다운 글로벌MC크루 라비, TXT 연준, 수빈 현장포토 [190321 M-Countdown Global MC crew: Ravi, TXT's Yeon-jun and Soo-bin's photo].Mnet (in Korean). March 21, 2019.Archived from the original on January 21, 2022. RetrievedJanuary 21, 2022.
^Ji, Min-kyung (November 22, 2023).[단독] 샤이니 키·TXT 연준·아이브 안유진, SBS '가요대전' MC 낙점 [[Exclusive] SHINee Key, TXT's Yeon-jun, and Ive's Ahn Yu-jin selected as MCs for SBS Gayo Daejeon].Osen (in Korean).Archived from the original on November 27, 2023. RetrievedNovember 22, 2023 – viaNaver.
^Kim, Ji-hye (February 15, 2025).[2024 한터뮤직어워즈]에스파, 불참에도 대상..TXT '5관왕' "빅히트 감사"(종합) [[2024 Hanteo Music Awards] Aespa, Grand Prize Despite Absence.. TXT '5 Crown Winners' "Thank you Big Hit" (Comprehensive)].Herald Pop (in Korean).Archived from the original on February 16, 2025. RetrievedFebruary 15, 2025.
^#32주년한터뮤직어워즈2024 후보자 공개 🏆 올해의 아티스트 본상 [32nd Anniversary Hanteo Music Awards 2024 Nominees Announcement 🏆 Artist of the Year Main Prize].Hanteo Music Awards (in Korean). December 20, 2024.Archived from the original on December 20, 2024. RetrievedDecember 20, 2024.
