구공이오공 (90250) – 프링프링(Prod.알케이)
Track 01 from Single "프링프링(Prod.알케이)"
Release Date: 2019.05.17
구공이오공 (90250) – 우린…
Track 01 from Single "우린..."
Release Date: 2016.06.17
구공이오공 (90250) – 첫눈에
Track 01 from Single "첫눈에"
Release Date: 2017.12.15
구공이오공 (90250) – 끄트머리
Track 01 from Single "끄트머리"
Release Date: 2018.09.13
구공이오공 (90250) – 너 없는 시간
Track 01 from Single "너 없는 시간"
Release Date: 2018.12.20