‘Mavin’ [넌 왜? (Oh wait!)] Hang tigh :-O Hold on 8-O Oh wait! X-D [CREDIT] 작사: Mavin, Rheehab 작곡: ruask, Mavin, Rheehab 편곡: ruask Executive Producer Mavin Produced by ruask Vocal by Mavin, Rheehab Chorus by Mavin, Rheehab Synth, Organ, Lead, Bass, Drum by ruask Mixed & Mastered by TSLW Recording by 천석만 at Mellow Green Studio Vocal directed by 천석만 Teaser Video Directed by 김소연 Artwork by 최원준