Heon Seo (헌서) – Come Home
Track 01 from Single 'Come Home'
Heon Seo (헌서) – 내일의 우린
Track 01 from Single '비하인드 더 씬 : 멜로디'
Heon Seo (헌서) – Halo
Track 01 from Single 'HALO'
Heon Seo (헌서), VINNY – Stars (KOR Ver.)
Track 01 from EP '우연일까? OST Part.2'
Heon Seo (헌서), VINNY – Stars (ENG Ver.)
Track 02 from EP '우연일까? OST Part.2'
Heon Seo (헌서) – 거짓말 탐지기
Track 01 from Single '거짓말 탐지기'
Heon Seo (헌서) – All Blue
Track 01 from EP '환승연애3 OST Part 8'