크라이젠 – I Am Your Child (Brian Kim Solo.) (English Pop Ver.)
Track 05 from EP "Reminiscing My First Love"
Release Date: 2007.12.28
크라이젠 – 바보라서
Track 01 from Single "Krygen Digital Single 3"
Release Date: 2010.11.05
크라이젠 – 겁쟁이
Track 01 from Single "거짓말쟁이"
Release Date: 2011.06.24
크라이젠 – Hello, 나의 첫사랑 (Brian Kim Solo.)
Track 04 from EP "Reminiscing My First Love"
Release Date: 2007.12.28
크라이젠 – 미안해요 (Feat. 김동현)
Track 03 from EP "Reminiscing My First Love"
Release Date: 2007.12.28
크라이젠 – 우두커니
Track 02 from EP "Reminiscing My First Love"
Release Date: 2007.12.28
크라이젠 – 사랑이 길을 잃어서 (Feat. 신디)
Track 01 from EP "Reminiscing My First Love"
Release Date: 2007.12.28
크라이젠 – When I’m With You
Track 03 from Single "만날 줄 알았죠"
Release Date: 2009.02.19
크라이젠 – 한참을 (Feat. 한경일, 정가희)
Track 02 from Single "만날 줄 알았죠"
Release Date: 2009.02.19
크라이젠 – 만날 줄 알았죠 (Feat. Tim)
Track 01 from Single "만날 줄 알았죠"
Release Date: 2009.02.19