Kein – 니가 예쁜 이유 (The Reason)
Track 01 from Single "니가 예쁜 이유"
Release Date: 2011.09.30
Be One with Kpop - with Lyric
Track 01 from Single "니가 예쁜 이유"
Release Date: 2011.09.30
Track 02 from Single "어떤 말로도"
Release Date: 2011.12.08
Track 01 from Single "어떤 말로도"
Release Date: 2011.12.08
Track 01 from EP "시크릿 엔젤 OST"
Release Date: 2012.04.23