1st Track 'Need to Know' Composed by Rums Written by 강예영 Vocal Performed by 이용신 Chorus by Rums Arranged by Rums Keyboard by Rums Synth by Rums Guitar by Rums Bass by Rums Drums by Rums
2st Track 'Need to Know (Inst.)' Composed by Rums Arranged by Rums Keyboard by Rums Synth by Rums Guitar by Rums Bass by Rums Drums by Rums
Recorded by 윤만옥 @KAC STUDIO All Mixed by Rums @KATZFADA STUDIO All Mastered by Rums @KATZFADA STUDIO Art Design by SERA