맥나인의 정규 4집 선공개 싱글 [Swang] 발표 Mac9 (맥나인), "Swang" MAKE HER A$$ SWANG [Credits] 1. Swang Composed by Nimuz, Mac9 Lyrics by Mac9 Cover designed by Mac9 Mixed by Mac9 @FT Music Group Studio Mastered by 권남우 @821 Sound Mastering