제국의아이들 (ZE:A) – Step By Step
Track 03 from EP "Illusion"
Release Date: 2013.08.09
제국의아이들 (ZE:A) – Marry Me
Track 01 from Single "Marry Me"
Release Date: 2015.08.10
제국의아이들 (ZE:A) – 이별드립
Track 04 from Album "CONTINUE"
Release Date: 2015.09.18
제국의아이들 (ZE:A) – 바람의 유령
Track 02 from EP "Illusion"
Release Date: 2013.08.09
제국의아이들 (ZE:A) – Love Coach
Track 07 from Album "Lovability"
Release Date: 2011.03.17
제국의아이들 (ZE:A) – Be My Girl
Track 06 from Album "Lovability"
Release Date: 2011.03.17
제국의아이들 (ZE:A) – 하루종일
Track 03 from Album "CONTINUE"
Release Date: 2015.09.18
제국의아이들 (ZE:A) – Crazy
Track 01 from EP "Illusion"
Release Date: 2013.08.09
제국의아이들 (ZE:A) – Mazeltov
Track 02 from Album "CONTINUE"
Release Date: 2015.09.18
제국의아이들 (ZE:A) – 하루종일
Track 05 from Album "Lovability"
Release Date: 2011.03.17
제국의아이들 (ZE:A) – Eyes On You
Track 02 from Single "Just Tonight"
Release Date: 2016.04.20
제국의아이들 (ZE:A) – Only One 4 U
Track 03 from Single "Oops !! ~ アプサ!! ~ / Oops !! ~ Apusa !! ~ (Oops !! ~ 아뿔사 !! ~)"
Release Date: 2013.06.17
제국의아이들 (ZE:A) – Love Coach
Track 01 from Album "CONTINUE"
Release Date: 2015.09.18
제국의아이들 (ZE:A) – 아리따운 걸
Track 01 from Single "아리따운 걸"
Release Date: 2012.12.07
제국의아이들 (ZE:A) – Just Tonight
Track 01 from Single "Just Tonight"
Release Date: 2016.04.20
제국의아이들 (ZE:A) – Mazeltov
Track 04 from Album "Lovability"
Release Date: 2011.03.17
제국의아이들 (ZE:A) – 今でしょ! / Imadesho! (지금이지!)
Track 02 from Single "Oops !! ~ アプサ!! ~ / Oops !! ~ Apusa !! ~ (Oops !! ~ 아뿔사 !! ~)"
Release Date: 2013.06.17
제국의아이들 (ZE:A) – Oops !! ~ アプサ!! ~ / Oops !! ~ Apusa !! ~ (Oops !! ~ 아뿔사 !! ~)
Track 01 from Single "Oops !! ~ アプサ!! ~ / Oops !! ~ Apusa !! ~ (Oops !! ~ 아뿔사 !! ~)"
Release Date: 2013.06.17
제국의아이들 (ZE:A) – Again..
Track 03 from Album "Lovability"
Release Date: 2011.03.17
제국의아이들 (ZE:A) – Here I Am
Track 02 from Album "Lovability"
Release Date: 2011.03.17
제국의아이들 (ZE:A) – Run To The World (Rock Ver.)
Track 03 from EP "더 킥 OST"
Release Date: 2011.10.26
제국의아이들 (ZE:A) – 이별드립
Track 01 from Single "Level Up (Digital Single)"
Release Date: 2010.07.08
제국의아이들 (ZE:A) – Run To The World
Track 01 from EP "더 킥 OST"
Release Date: 2011.10.26
제국의아이들 (ZE:A) – 왜 몰랐을까.. (Feat. 최현준 Of V.O.S)
Track 01 from Single "별순검 시즌3 OST Part.2"
Release Date: 2010.09.08
박정아, 서인영, 제국의아이들 (ZE:A), 쥬얼리, 나인뮤지스 – Shooting Star
Track 01 from Single "Star Empire"
Release Date: 2011.11.30