유명한아이 “Rosy (feat. Tommy waaves)” “Why not?” 프로젝트 EP. 1 Rosy (feat. Tommy waaves) “Why not?” Project Ep. 1 Rosy (feat. Tommy waaves) [Credit] Lyrics by 유명한아이, Tommy waaves Composed by 정마필, 유명한아이, Tommy waaves Arranged by 정마필 Mixed by 정마필 Mastered by 정마필