Billlie (빌리) – trampoline
Track 01 from Single 'trampoline'
Billlie (빌리) – the soul savior ~ I don’t need a superman
Track 01 from Single "'the Billlie's odditorium' the first edition"
Release Date: 2023.11.27
Billlie (빌리) – BYOB (bring your own best friend) (English Ver.)
Track 02 from Single "Billlie 'BYOB (bring your own best friend)'"
Release Date: 2023.09.27
Billlie (빌리) – BYOB (bring your own best friend)
Track 01 from Single "Billlie 'BYOB (bring your own best friend)'"
Release Date: 2023.09.27
Billlie (빌리) – nevertheless
Track 06 from EP "the Billage of perception: chapter three"
Release Date: 2023.03.28
Billlie (빌리) – extra-ordinary
Track 05 from EP "the Billage of perception: chapter three"
Release Date: 2023.03.28
Billlie (빌리) – various and precious (moment of inertia)
Track 04 from EP "the Billage of perception: chapter three"
Release Date: 2023.03.28
Billlie (빌리) – EUNOIA
Track 03 from EP "the Billage of perception: chapter three"
Release Date: 2023.03.28
Billlie (빌리) – lionheart (the real me)
Track 02 from EP "the Billage of perception: chapter three"
Release Date: 2023.03.28
Billlie (빌리) – enchanted night ~ 白夜
Track 01 from EP "the Billage of perception: chapter three"
Release Date: 2023.03.28
Billlie (빌리) – 저 별
Track 01 from Single "[웹툰싱어] 저 별 (모퉁이 뜨개방 x Billlie (빌리))"
Release Date: 2023.03.11
Billlie (빌리), 윤종신 – 고속도로 로맨스
Track 02 from Single "track by YOON: 팥빙수"
Release Date: 2022.07.14
Billlie (빌리), 윤종신 – 팥빙수
Track 01 from Single "track by YOON: 팥빙수"
Release Date: 2022.07.14