위스티 (Wisty), Four20, HAiL, V.D, SEIN, Wenzday – Next to me (Prod. Wisty)
Track 01 from Single "Next to me"
Release Date: 2020.12.18
Four20 – 이렇게 힘들 줄 알았다면
Track 04 from EP "ONCE"
Release Date: 2021.04.20
Four20 – Shall we dance (Feat. Wisty)
Track 03 from EP "ONCE"
Release Date: 2021.04.20
Four20 – MI
Track 02 from EP "ONCE"
Release Date: 2021.04.20
Four20 – 진사리 길로틴
Track 01 from EP "ONCE"
Release Date: 2021.04.20