유성은, 홍대광 – 고등학교 동창회
Track 01 from Single "노래의 탄생 Part.2"
Release Date: 2016.05.07
홍대광 – 친구가 축가를 부탁했다
Track 06 from EP "Inside Wants"
Release Date: 2019.02.13
가영, 홍대광 – Double Fantasy
Track 02 from EP "MBN 미쓰백 Part.8"
Release Date: 2021.01.13
홍대광 – 아닌가요
Track 02 from Single "홍대에 가면"
Release Date: 2016.04.26
홍대광 – 바람의 언덕
Track 05 from EP "Inside Wants"
Release Date: 2019.02.13
홍대광 – 홍대에 가면
Track 01 from Single "홍대에 가면"
Release Date: 2016.04.26
홍대광 – 바람의 언덕
Track 01 from Single "바람의 언덕"
Release Date: 2018.10.22
홍대광 – Rain
Track 04 from EP "Inside Wants"
Release Date: 2019.02.13
홍대광 – 방황
Track 03 from EP "Inside Wants"
Release Date: 2019.02.13
홍대광 – 내가 나빠
Track 02 from EP "Inside Wants"
Release Date: 2019.02.13
홍대광 – 티가나요
Track 01 from Single "너를 기억해 OST Part.3"
Release Date: 2015.07.21
홍대광 – Calling U
Track 01 from EP "Inside Wants"
Release Date: 2019.02.13
홍대광 – My Room
Track 01 from Single "멈추고 싶은 순간 : 어바웃타임 OST Part.5"
Release Date: 2018.06.26
홍대광 – 그대가 내게
Track 01 from Single "끝에서 두 번째 사랑 OST Part.5"
Release Date: 2016.08.27
유성은, 자밀킴, 홍대광 – 축하해요
Track 01 from Single "노래의 탄생 Part.4"
Release Date: 2016.05.21
홍대광 – 한 걸음씩 발맞춰서
Track 01 from Single "한 걸음씩 발맞춰서"
Release Date: 2021.05.24
홍대광, 키썸 (Kisum) – 힙합이 뭔데?
Track 01 from Single "힙알못 프로젝트"
Release Date: 2016.11.22
홍대광 – 느낌이 와!!!
Track 01 from Single "썸 끓는 시간, 만화카페 2호점 OST Part.01"
Release Date: 2020.02.25
홍대광 – 둥둥
Track 01 from Single "그녀의 사생활 OST Part 2"
Release Date: 2019.04.18
홍대광 – 네가 나의 눈을 바라봐줬을때
Track 01 from Single "네가 나의 눈을 바라봐줬을때"
Release Date: 2020.01.12
홍대광 – 너와 나
Track 01 from Single "주군의 태양 OST Part.2"
Release Date: 2013.08.14
홍대광 – 사랑인 걸까?
Track 01 from Single "내성적인 보스 OST Part.1"
Release Date: 2017.01.17