서뉼(Seonyull) – 널 언제까지 좋아하게 될까 (With 미강 (MIKANG))
Track 01 from Single '널 언제까지 좋아하게 될까'
서뉼(Seonyull) – 애쓰지 않아도 돼 (with YOHAN)
Track 01 from Single "애쓰지 않아도 돼"
Release Date: 2021.10.29
서뉼(Seonyull) – 겨울꽃 (With 남가현)
Track 01 from Single "겨울꽃"
Release Date: 2021.12.22
서뉼(Seonyull) – 거긴 어때 (With 허윤민)
Track 01 from Single "거긴 어때"
Release Date: 2021.11.26