- Talk About S. - EP · 2012
- Romantic Spring - EP · 2013
- Talk About S. - EP · 2012
- LOEN TREE Summer Story - EP · 2012
- VIP (Original Soundtrack) Pt.2 - Single · 2019
- VIP (Original Soundtrack) · 2019
- Kiss or Kill (From “MISSING 9”) - Single · 2017
- Kiss or Kill (From “MISSING 9”) - Single · 2017
- Pray - Single · 2017
- End Again - EP · 2016
- End Again - EP · 2016
- End Again - EP · 2016
- End Again - EP · 2016
Music Videos
- 2012
- 2015
Compilations
About GAIN
- HOMETOWN
- Gangseo District
- BORN
- 20 September 1987
- GENRE
- K-Pop