First Name: In Seong
Family Name: Jeong
Native name: 정인성
Also Known as: JungSung;Jung In Sung
Nationality: South Korean
Gender: Male
Born: July 1, 1994
Jeong In Seong is the main vocalist of the boy group KNK. Along with bandmate Seungjun, he was a former Big Hit Entertainment trainee with the members of the boy group BTS. He was also a FNC Entertainment trainee. In 2015, together with his bandmates, he started hosting the reality show My Keunakeun Television on Naver TV Cast.
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