하비(최성용) – 잘될 거야
Track 01 from Single "2019.07.07"
Release Date: 2020.02.25
하비(최성용) – 없는걸까
Track 01 from Single "없는걸까"
Release Date: 2018.01.16
하비(최성용) – 우릴 잃지 않을 그 자리 (Vocal. 채단)
Track 01 from Single "Unplugged 1"
Release Date: 2017.12.07
하비(최성용) – Raindrop
Track 01 from Single "Raindrop"
Release Date: 2016.10.11
하비(최성용) – 괜찮아질까
Track 01 from Single "괜찮아질까"
Release Date: 2019.03.23
하비(최성용) – 약속해
Track 01 from Single "약속해"
Release Date: 2019.10.10
듀자매, 티곰, 김쏘야, 큰지(KN-JI), 임은빈, 하비(최성용) – Love Challenge (X-Mas Ver.)
Track 02 from Single "INS Winter Project"
Release Date: 2020.12.09
듀자매, 티곰, 김쏘야, 큰지(KN-JI), 임은빈, 하비(최성용) – Love Challenge
Track 01 from Single "INS Winter Project"
Release Date: 2020.12.09