지연, JAY B – Together
Track 01 from Single "드림하이2 OST Part.7"
Release Date: 2012.03.13
이보람 (씨야), 효민, 지연 – 우유보다 커피
Track 01 from Single "커피하우스 OST Part.3"
Release Date: 2010.05.25
효린, 지연, 에일리(AILEE) – Super Star
Track 01 from Single "드림하이2 OST Part.4"
Release Date: 2012.02.21
지연 – 또르르
Track 03 from EP "공부의 신 OST"
Release Date: 2010.01.05
지연 – 자꾸 마음이 가
Track 01 from Single "빨강 구두 OST Part.5"
Release Date: 2021.08.07
지연 – I Dream Of You
Track 07 from Album "2003 Winter Vacation In SMTown.com"
Release Date: 2003.12.09
지연 – 하루하루
Track 08 from Album "드림하이2 OST"
Release Date: 2012.03.26
지연, JAY B – Together
Track 06 from Album "드림하이2 OST"
Release Date: 2012.03.26
효린, 지연, 에일리(AILEE) – Super Star
Track 04 from Album "드림하이2 OST"
Release Date: 2012.03.26