일급비밀

일급비밀 (English: TST; formerly Top Secret) is a six-member (previously seven-member) boy group under JSL Company. They debuted in January 2017 with the mini album Time's Up. Members K, Yohan, and Ain were formerly part of the boy group NOM. Members: K - vocals Yohan - vocals Ain - leader, dance Wooyeong - vocals, rap Junghoon - rap Yonghyeon - vocals Former Members: Kyeongha - rap Read more on Last.fm. User-contributed text is available under the Creative Commons By-SA License; additional terms may apply.