박자연 – 웃다 또 울다
Track 01 from Single "웃다 또 울다"
Release Date: 2017.09.05
박자연 – 나도 그래
Track 01 from Single "나도 그래"
Release Date: 2021.04.16
박자연 – 우리백일
Track 01 from EP "사랑..이별.."
Release Date: 2009.08.10
착한아들, 박자연 – Darling
Track 01 from Single "착한아들 Project 4"
Release Date: 2016.12.19