연지수 – 씻고와요 (Feat. 김영빈, 류현준)
Track 01 from Single "씻고와요"
Release Date: 2016.09.06
연지수 – Cherish (Feat. 류현준)
Track 01 from Single "Cherish"
Release Date: 2019.03.05
연지수 – 외쳐!크리스마스 (Feat. 에렌디라, 김준태, 류현준, 윤수)
Track 01 from Single "Snow Story"
Release Date: 2018.01.11
연지수 – Toy Story (Feat. 지라라, 류현준, 고결, 휴복)
Track 01 from Single "Toy Story"
Release Date: 2016.10.28
연지수 – 새벽감성 (Feat. 류현준)
Track 01 from Single "새벽감성"
Release Date: 2019.03.05
연지수 – 카페모카 (Feat. 류현준, 예빈)
Track 01 from Single "카페모카"
Release Date: 2017.03.03