홍정호 – 미안해요
Track 03 from EP "전상서"
Release Date: 2018.07.05
홍정호 – 하지못한 말(with 전승우)
Track 01 from Single "후회"
Release Date: 2019.07.29
홍정호 – I GOT A MIND
Track 06 from Album "분장"
Release Date: 2017.09.07
홍정호 – 거울 속의 나
Track 05 from Album "분장"
Release Date: 2017.09.07