케이준 – 노세노세 (구세주 주제가)
Track 02 from Album "결혼합시다 OST"
Release Date: 2006.01.12
케이준 – Merry Christmas With Ma Lover
Track 03 from EP "Somewhere Over The Rainbow Vol.7 - Christmas Party (Beat)"
Release Date: 2008.12.05
케이준 – Sweet Christmas (Feat. 이현지)
Track 01 from EP "Somewhere Over The Rainbow Vol.7 - Christmas Party (Beat)"
Release Date: 2008.12.05
케이준 – 건대입구 사거리
Track 06 from Album "Collage 1"
Release Date: 2008.03.20
김수준, 케이준 – Dream Girl
Track 12 from Album "Collage 3"
Release Date: 2010.05.17
노도, 버벌진트, 케이준, 조현아 (어반자카파), 비솝, San E, rimi – 10 (Prod. by K JUN)
Track 02 from Single "10"
Release Date: 2017.03.29
케이준, San E – 내가 (Feat. GIANT PINK) (Prod. by K JUN)
Track 04 from Album "Collage 4"
Release Date: 2017.06.06
노도, 버벌진트, 케이준, 조현아 (어반자카파), 비솝, San E, rimi – 10 (Prod. by K JUN)
Track 02 from Album "Collage 4"
Release Date: 2017.06.06
김수준, 케이준, San E – Soul Funky Brothers (Prod. by 김수준)
Track 01 from Album "Collage 4"
Release Date: 2017.06.06