Hidden Identity OST Part.1 (tvN Moon Fire Drama) Album Style: O.S.T, Ballad

Release Date: 2015.06.29

Distribution Company: CJ Eamp ;M

Track list:

01. Say -I.D /?- I.D

02. I.D (Inst.) Hidden Identity OST Part.2 (tvN Moon Fire Drama) Album style: O.S.T, Hip-Hop

Release date: 2015.07.07

Publishing company: CJ Eamp; M

Track list:

01. Zhejiu-New World (Feat. Huilin) ??/ ?- (Feat. ?)

02. New World (Feat. Huilin) ??/ (Feat. ?) ( Inst.) Hidden Identity OST Part.3 (tvN Moon Fire Drama) Album style: O.S.T, Ballad

Release date: 2015.07.14

Distributing company: CJ Eamp; M

Track list:

01. Noel - Dark Lights/ (?) - ?

02. Dark Lights/ ?(Inst.) Hidden Identity OST Part.4 (tvN Moon Fire Drama) Album style: O.S.T, Ballad

Release date: 2015.07.21

Publishing company: CJ Eamp; M

Track list:

01. Mad Soul Child - It's Over / - It's Over

02. It's Over (Inst.)

(Above source )