형원 (몬스타엑스) – NOW
Track 01 from Single "사장돌 마트 OST part.4"
Release Date: 2023.09.22
홍빈, 형원 (몬스타엑스) – COOL LOVE (Prod. dress)
Track 01 from Single "THE LOVE OF SUMMER : THE PERFORMANCE"
Release Date: 2019.07.10
형원 (몬스타엑스) – Picture
Track 03 from Album "다시, 플라이 OST"
Release Date: 2021.12.25
형원 (몬스타엑스) – Picture
Track 01 from Single "Picture (다시, 플라이 X 형원(몬스타엑스))"
Release Date: 2021.12.11
형원 (몬스타엑스), Justin OH – BAM!BAM!BAM! (Feat. 주헌)
Track 01 from Single "BAM!BAM!BAM!"
Release Date: 2017.09.25