GA EUN (가은) – Blind
Track 01 from Single "블라인드 OST Part.3"
Release Date: 2022.10.15
GA EUN (가은) – DRAW
Track 01 from EP "유니콘 OST Part.3"
Release Date: 2022.09.15
JIDA (지다), GA EUN (가은) – 어제의
Track 01 from Single "어제의"
Release Date: 2022.06.16
GA EUN (가은) – Pray
Track 02 from EP "IDOL (아이돌 : The Coup) OST Part.4"
Release Date: 2021.11.29
GA EUN (가은) – Daybreak
Track 05 from EP "WALNUTFUL"
Release Date: 2020.04.04
GA EUN (가은) – 빠질것만 같아 (Hidden Track No.V 8월 선정곡)
Track 01 from Single "빠질것만 같아"
Release Date: 2017.11.19
GA EUN (가은) – 숨길수록 드러나는 것
Track 04 from EP "WALNUTFUL"
Release Date: 2020.04.04
GA EUN (가은) – Wall
Track 01 from Single "Between us"
Release Date: 2018.04.28
GA EUN (가은) – Curious
Track 01 from Single "레버리지 : 사기조작단 (TV조선 일요드라마) OST - Part.1"
Release Date: 2019.10.20
GA EUN (가은) – 생각을 멈추는 생각을 멈춰 (Feat. nafla)
Track 03 from EP "WALNUTFUL"
Release Date: 2020.04.04
GA EUN (가은) – I’ll Be With You
Track 01 from Single "동백꽃 필 무렵 (KBS2 수목드라마) OST - Part.10"
Release Date: 2019.11.14
GA EUN (가은) – GDC(Girls Don’t Cry)
Track 02 from EP "WALNUTFUL"
Release Date: 2020.04.04
GA EUN (가은) – SNOOZE (Feat. Hash Swan)
Track 01 from Single "SNOOZE (Feat. Hash Swan)"
Release Date: 2019.07.13
GA EUN (가은) – Candle
Track 01 from Single "Candle_Ga Eun 1st Digital Single"
Release Date: 2017.03.03
GA EUN (가은) – Don’t Worry
Track 01 from EP "WALNUTFUL"
Release Date: 2020.04.04
GA EUN (가은) – Got You
Track 02 from EP "사이코지만 괜찮아 OST Special Track vol.1"
Release Date: 2020.07.11
김연지, 임한별, 용주 (YONGZOO), GA EUN (가은), 라엘 (Ra.L), 임지은, James Kang, 삼마합창단 – 노엘 (The First Noel)
Track 01 from Single "동백꽃 필 무렵 (KBS2 수목드라마) OST Special Track"
Release Date: 2019.12.01