Jeong In Seong (정인성) is a South Korean singer under 220 Entertainment. He is the main vocalist of the boy group KNK.
He is best known for being a contestant on the reality survival show MIXNINE and Build Up : Vocal Boy Group Survivor.
He made his solo debut on October 30, 2023 with the digital single "Trust Yourself".[1]
Career[]
Pre-debut[]
Along with Seungjun, he was a former Big Hit Entertainment trainee where they both trained with the members of the boy group BTS.
Upon moving to FNC Entertainment, he appeared as one of the trainees in its reality show Cheongdam-dong 111 along with Heejun in 2013.
Before debuting with KNK, he was a backup dancer for the live performances of BESTie's "I Need You".
2024: Build Up : Vocal Boy Group Survivor[]
In January 2024, he was revealed as a contestant on Mnet's reality survival show Build Up : Vocal Boy Group Survivor.[2]
2025: "일기쓰는남자"[]
On December 19, 2024, it was reported that Jeong In Seong was casted in the musical "일기쓰는남자" as Lee Moji and would appear on stage on February 18-22, 2025 at Gwangmyeong Civic Center Grand Concert Hall.[3]
Personal life[]
Military service[]
On January 13, 2022, 220 Entertainment announced that Jeong In Seong would be enlisting on February 8.[4] He was discharged on August 7, 2023.[5]
Discography[]
Digital singles[]
- "Trust Yourself" (2023)
- "First Time Back Then" (2024)
Filmography[]
Reality shows[]
- Cheongdam-dong 111 (2013)
- MIXNINE (JTBC, 2017–2018) - contestant
- Build Up : Vocal Boy Group Survivor (Mnet, 2024) - contestant
Variety shows[]
- Let's Go! Dream Team Season 2 (2016)
- Duet Song Festival (2016) - contestant with Kim Wan Sun
- Hello Counselor (2016)
- Hitmaker Season 3 (2017)
Music video appearances[]
Gallery[]
- Main article: Jeong In Seong/Gallery
References[]
- ↑ (KR) News1: 크나큰 정인성, 데뷔 7년만 솔로 데뷔..30일 신곡 '밤의 의미' 발매
- ↑ Soompi: Mnet's New Vocal Survival Show "Build Up" Unveils All 40 Contestants
- ↑ @KNKOfficial220 on Twitter (December 19, 2024)
- ↑ Soompi: KNK Announces Oh Heejun’s Departure From Group And Jeong Inseong’s Military Enlistment In February
- ↑ @KNKOfficial220 on Twitter (August 7, 2023)
Official links[]
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