What's On Your Mind? Credit Lyrics by SHIRT, UNE, HAAN Composed by HAAN, SHIRT, UNE Arranged by HAAN Drums by HAAN Synthesizers by HAAN Keyboards by HAAN Bass by HAAN Chorus by SHIRT, UNE Mixed & Mastered by Chan, SHIRT @ BLESSFOR Studio Artwork Design by 정성훈 @bysnghun