[Credit]

01. 그거 알아? (Feat. 안재우)

Lyrics by Hollow Young, 안재우
Composed by Hollow Young, J Way, 안재우
Arranged by J Way, Hollow Young
Keyboard by Hollow Young, J Way
Drums by J Way
Bass by J Way
Strings by J Way
Synth by J Way
Percussion by J Way

Mixed & Mastered by 최동주(POLO)
Artwork by Hollow Young