시온 – Biz Is Easi
Track 01 from EP "2ND Single"
Release Date: 2006.09.20
시온 – Superman
Track 01 from EP "Beautiful Life"
Release Date: 2011.08.19
박지헌, 시온 – 아빠랑 Song (아빠만)
Track 02 from EP "아빠랑 Song"
Release Date: 2020.06.18
박지헌, 시온 – 아빠랑 Song (다같이)
Track 01 from EP "아빠랑 Song"
Release Date: 2020.06.18
시온 – 사랑하다
Track 06 from EP "다함께 차차차 OST (Deluxe Edition)"
Release Date: 2009.11.02
시온 – 사랑하다
Track 03 from EP "다함께 차차차 OST"
Release Date: 2009.10.06
시온 – 빈상자
Track 03 from Single "그저 바라 보다가 두 번째 OST"
Release Date: 2009.05.06
시온 – I believe
Track 04 from Album "처용 2 OST"
Release Date: 2015.10.20
시온 – 가버려
Track 07 from Album "웃어요 엄마 OST"
Release Date: 2011.03.28