일급비밀 (TST) – Count down
Track 01 from Single "COUNTDOWN"
Release Date: 2020.01.02
일급비밀 (TST) – YESMAN
Track 05 from EP "일급비밀 2ND MINI ALBUM 'WAKE UP'"
Release Date: 2017.06.04
일급비밀 (TST) – 하루 열댓번
Track 04 from EP "일급비밀 2ND MINI ALBUM 'WAKE UP'"
Release Date: 2017.06.04
일급비밀 (TST) – 좋다니까
Track 03 from EP "일급비밀 2ND MINI ALBUM 'WAKE UP'"
Release Date: 2017.06.04
일급비밀 (TST) – MIND CONTROL
Track 02 from EP "일급비밀 2ND MINI ALBUM 'WAKE UP'"
Release Date: 2017.06.04
일급비밀 (TST) – 하필 너를 만나서 (Solo K)
Track 02 from EP "WAKE UP"
Release Date: 2019.02.11
일급비밀 (TST) – WAKE UP
Track 01 from EP "WAKE UP"
Release Date: 2019.02.11
일급비밀 (TST) – Without You
Track 05 from EP "일급비밀 1st Mini Album (Time's Up)"
Release Date: 2017.01.04
일급비밀 (TST) – 이름 부르지도 마
Track 04 from EP "일급비밀 1st Mini Album (Time's Up)"
Release Date: 2017.01.04
일급비밀 (TST) – Something Special
Track 03 from EP "일급비밀 1st Mini Album (Time's Up)"
Release Date: 2017.01.04
일급비밀 (TST) – She
Track 02 from EP "일급비밀 1st Mini Album (Time's Up)"
Release Date: 2017.01.04
일급비밀 (TST) – Intro (Time’s Up)
Track 01 from EP "일급비밀 1st Mini Album (Time's Up)"
Release Date: 2017.01.04
일급비밀 (TST) – 낙원 (PARADISE)
Track 01 from Single "낙원 (PARADISE)"
Release Date: 2018.11.01
일급비밀 (TST) – LOVE STORY
Track 01 from Single "LOVE STORY"
Release Date: 2018.05.23