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Biography

  • Years Active

    2016 – present (2 years)

  • Founded In

    Seoul, Korea, Republic of

  • Members

    • K (2016 – present)
    • 경하 (2016 – present)
    • 아인 (2016 – present)
    • 요한 (2016 – present)
    • 용현 (2016 – present)

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

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