‘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