헤어지는건 꼭 연인만의 일은 아닌거 같습니다. Produced by 원써겐, Donnie J Composed by 원써겐, Donnie J Lyrics by 원써겐 Arranged by 원써겐 Guitar by 조창현 Chorus by 수안 Narration by 박경준, 수안, 재만, 창현 Mixing by Make Will Mastering by Make Will