# Lee Jung-shin (이정신)
**Lee Jung-shin** (이정신; born 1991) is a South Korean musician and actor, best known as the bassist and rapper of the rock band [CNBLUE](https://www.edgepedia.org/cnblue), in which he is the youngest member (the *maknae*).[1](https://www.kpedia.jp/w/print/26008) • [2](https://www.cnblue-official.jp/profile) He is affiliated with [FNC Entertainment](https://www.edgepedia.org/fnc-entertainment) and has built a parallel acting career in Korean television dramas.[1](https://www.kpedia.jp/w/print/26008)
| Key fact | Detail |
|---|---|
| Born | 1991; height 187 cm, weight 68 kg[1](https://www.kpedia.jp/w/print/26008) |
| Role in CNBLUE | Bass and rap; the group's youngest member[1](https://www.kpedia.jp/w/print/26008) • [2](https://www.cnblue-official.jp/profile) |
| Joined the band | Replaced original bassist Kwon Kwang-jin at the end of 2009, before the Korean debut[3](https://www.yoda.wiki/wiki/CNBLUE) |
| Korean debut | 14 January 2010 with the EP *Bluetory*[3](https://www.yoda.wiki/wiki/CNBLUE) |
| Agency | FNC Entertainment[1](https://www.kpedia.jp/w/print/26008) |
| Acting | Drama roles including Do Soo-hyuk in tvN's *Shooting Stars* (2022) and pediatrician Moon Tae-kyung in the upcoming MBN series *Boss's Explicit Taste*[4](https://mhnse.com/news/articleView.html?idxno=1489266) • [5](https://v.daum.net/v/20260814103907119?botevent=e&botref=KN&from=newsbot) |
| Military service | Discharged in March 2021[6](https://www.tenasia.co.kr/article/2022061026304) |
## Joining CNBLUE and debut
CNBLUE formed as a four-piece and spent 2009 performing in Japan, playing street shows and live clubs before releasing the indie EP *Now or Never* in August 2009.[3](https://www.yoda.wiki/wiki/CNBLUE) In late September 2009 the original bassist Kwon Kwang-jin left the band, and Lee Jung-shin replaced him by the end of that year.[3](https://www.yoda.wiki/wiki/CNBLUE) The band then made its Korean debut on 14 January 2010 with the EP *Bluetory* and its lead single "I'm a Loner" (외톨이야).[3](https://www.yoda.wiki/wiki/CNBLUE)
As the band's bassist, Lee Jung-shin took the rap parts in CNBLUE's arrangements; the official Japanese profile lists his specialty as rap and his blood type as A.[2](https://www.cnblue-official.jp/profile) In the group's early years he also worked outside music: around the release of CNBLUE's first full album *FIRST STEP* and its chart-topping title track "Intuition" (직감) in 2011, he was reported as a singer model favored by fashion designers.[7](https://www.diodeo.com/news/view/55986) In 2012 the band served as public relations ambassadors for the Girl Scouts in Korea.[8](https://www.girlscout.or.kr/upload/monthly/120102%ED%8A%B9%EB%B3%84%EA%B8%B0%ED%9A%8D.pdf)
## Acting career
Lee Jung-shin began acting two years after the group's debut, with *My Daughter Seo-young* (내 딸 서영이); the Japanese-language profile source dates this debut work to 2013, while a News1 interview describes the move as coming two years after the 2010 debut.[9](https://www.news1.kr/amp/entertain/interview/4709180) • [1](https://www.kpedia.jp/w/print/26008) The drama was a major hit, recording a viewership rating of 49.3 percent, and he played the second son of the Kang family.[1](https://www.kpedia.jp/w/print/26008) His other early drama credits include *My Beloved Soyon* (2012), *Sword and Flower* (2013), and *Temptation* (2014), and he appeared on variety programs such as *Cheongdam-dong 111* and *Fashion King – Secret Box*.[1](https://www.kpedia.jp/w/print/26008) In 2015 he appeared on the popular variety show *We Got Married*, where [Lee Jong-hyun](https://www.edgepedia.org/lee-jong-hyun) played [Gong Seung-yeon](https://www.edgepedia.org/gong-seung-yeon)'s virtual husband.[1](https://www.kpedia.jp/w/print/26008) • [15](https://www.soompi.com/article/764861wpp/lee-jong-hyun-and-gong-seung-yeon-reach-a-beautiful-end-on-we-got-married)
**Television roles of the 2020s.** In tvN's romantic comedy *Shooting Stars* (별똥별, 2022), set in the entertainment industry, he played Do Soo-hyuk, a lawyer at the law firm Biho who also serves as counsel for Starforce Entertainment.[10](https://news.nate.com/view/20220615n09433) He followed with SBS's *The Escape of the Seven: Resurrection* (7인의 부활) and the short-form drama *Devil's Contract Marriage* (악마와 계약 결혼), which extended his work into a new format.[4](https://mhnse.com/news/articleView.html?idxno=1489266) • [5](https://v.daum.net/v/20260814103907119?botevent=e&botref=KN&from=newsbot)
In August 2026 it was announced that he had joined the cast of the MBN romance drama *Boss's Explicit Taste* (보스의 노골적 취향), scheduled to premiere in November 2026. He plays Moon Tae-kyung, a pediatric specialist portrayed as accomplished in appearance, personality, and family background, appearing alongside Sung Hoon, who plays chaebol boss Kwon Do-hyuk, and Oh Se-young as indie band vocalist Lee Eun-chae.[4](https://mhnse.com/news/articleView.html?idxno=1489266) • [5](https://v.daum.net/v/20260814103907119?botevent=e&botref=KN&from=newsbot)
## Music beyond the band
Lee Jung-shin has released solo recordings alongside group activity. His soundtrack work includes "Confession" (고백) for *[Cinderella and Four Knights](https://www.edgepedia.org/cinderella-with-four-knights)* OST Part.9, released 24 September 2016, and the single "Blue Orion", released 24 July 2019.[11](https://music.bugs.co.kr/artist/80063328?wl_ref=S_ar_02_04) A live recording from his 2018 solo fan meeting tour, *Live-2018 Solo FMT -Bon Voyage-*, was released on 1 September 2020.[11](https://music.bugs.co.kr/artist/80063328?wl_ref=S_ar_02_04)
## Military service and the trio era
CNBLUE suspended group activities in 2018 as all members enlisted for mandatory military service; by 2020 all had completed service, and the band returned on 17 November 2020 with its eighth mini album *RE-CODE*, its first Korean comeback in about three years and eight months.[2](https://www.cnblue-official.jp/profile) Lee Jung-shin was discharged in March 2021.[6](https://www.tenasia.co.kr/article/2022061026304) In May 2021, FNC Entertainment announced that his father had died and that the family held a quiet funeral.[12](https://www.yna.co.kr/view/AKR20210526076000005)
The band's lineup changed during this period: Kwon Kwang-jin had left in 2009 and been replaced by Lee Jung-shin, and Lee Jong-hyun departed in 2019, leaving the current trio of [Jung Yong-hwa](https://www.edgepedia.org/jung-yong-hwa), Kang Min-hyuk, and Lee Jung-shin.[13](https://m.skyedaily.com/pdf_view.html?pdf_url=%2Fdata%2Fskyn_pdf%2F2023%2F20230920%2Fweb%2F20230920-11) In a 2022 interview marking twelve years since debut, Lee Jung-shin said the members shared the goal of keeping CNBLUE together while pursuing individual work, and named acting as his personal priority.[6](https://www.tenasia.co.kr/article/2022061026304)
## Recent activity
The group remains active in both Korea and Japan. On 28 August 2026, CNBLUE departed through Incheon International Airport for Macao for an overseas schedule.[14](https://www.osen.co.kr/article/G1112865349) The band's 2026 releases include the album *3LOGY*, listed on Bugs as a full-length album released 7 January 2026.[11](https://music.bugs.co.kr/artist/80063328?wl_ref=S_ar_02_04)
## References
1. [이정신（CNBLUE） profile, Kpedia](https://www.kpedia.jp/w/print/26008)
2. [PROFILE, CNBLUE official website (Japan)](https://www.cnblue-official.jp/profile)
3. [씨엔블루 (CNBLUE), Yoda Wiki](https://www.yoda.wiki/wiki/CNBLUE)
4. [씨엔블루 이정신, '완벽한 소아과 의사' 된다…성훈·오세영과 로맨스 합류('보스의 노골적 취향'), MHN](https://mhnse.com/news/articleView.html?idxno=1489266)
5. [씨엔블루 이정신, 이번엔 소아과 의사… '보스의 노골적 취향' 합류, bnt뉴스 via Daum](https://v.daum.net/v/20260814103907119?botevent=e&botref=KN&from=newsbot)
6. ['데뷔 12년' 이정신, "씨엔블루 끝까지 지킬 것" [인터뷰①], 텐아시아](https://www.tenasia.co.kr/article/2022061026304)
7. [씨엔블루 이정신, '국민모델' 되나? 디자이너들이 가장 선호하는 가수 모델, 디오디오](https://www.diodeo.com/news/view/55986)
8. [안녕하세요! CNBLUE입니다, 걸스카우트 특별기획](https://www.girlscout.or.kr/upload/monthly/120102%ED%8A%B9%EB%B3%84%EA%B8%B0%ED%9A%8D.pdf)
9. ['별똥별' 이정신 "가수 출신 장점되기도…씨엔블루 지키고파" [N인터뷰]②, 뉴스1](https://www.news1.kr/amp/entertain/interview/4709180)
10. ['별똥별' 이정신 "씨엔블루, 20대 때 가장 잘한 일…밴드 하면 'CNBLUE'", 네이트 연예/OSEN](https://news.nate.com/view/20220615n09433)
11. [이정신(Lee Jung Shin) artist page, Bugs](https://music.bugs.co.kr/artist/80063328?wl_ref=S_ar_02_04)
12. [밴드 씨엔블루 이정신 부친상…"조용히 장례", 연합뉴스](https://www.yna.co.kr/view/AKR20210526076000005)
13. [CNBLUE 관련 기사, 스카이데일리 (2023)](https://m.skyedaily.com/pdf_view.html?pdf_url=%2Fdata%2Fskyn_pdf%2F2023%2F20230920%2Fweb%2F20230920-11)
14. [[사진]씨엔블루 이정신, 마카오 다녀올게요, OSEN](https://www.osen.co.kr/article/G1112865349)
15. [Lee Jong Hyun and Gong Seung Yeon Reach a Beautiful End on "We Got Married", Soompi](https://www.soompi.com/article/764861wpp/lee-jong-hyun-and-gong-seung-yeon-reach-a-beautiful-end-on-we-got-married)
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*Topic: Encyclopedia › Arts and culture › Music › Music scenes › East and Southeast Asian pop scenes › K-pop and the Korean popular music scene › Artists, groups, and people: K-pop and the Korean popular music scene › First- and second-generation idol groups and 1990s dance acts › Surnames K to S*
*Initially written Sep 17, 2026 · Reviewed: Sep 18, 2026; Oct 25, 2026 · Edited: Sep 18, 2026; Oct 12, 2026; Oct 25, 2026 · Last review: Oct 25, 2026*
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License: Edgepedia Community License 1.0, https://www.edgepedia.org/edgepedia/license