장지연 – 너의 온기
Track 02 from Single "우리가 그린 이야기"
Release Date: 2020.09.01
장지연, 이형근 – 그때 우리처럼
Track 01 from Single "그때 우리처럼"
Release Date: 2014.07.15
장지연, 이형근 – 전화통화
Track 01 from Single "전화통화"
Release Date: 2017.03.24
Be One with Kpop - with Lyric
Track 02 from Single "우리가 그린 이야기"
Release Date: 2020.09.01
Track 01 from Single "그때 우리처럼"
Release Date: 2014.07.15
Track 01 from Single "전화통화"
Release Date: 2017.03.24