유겸 (YUGYEOM) - ‘Ponytail (Feat. 식케이 (Sik-K))’ [CREDIT] Lyrics by 유겸 (YUGYEOM), GRAY (그레이), 식케이 (Sik-K) Composed by 유겸 (YUGYEOM), GRAY (그레이), 식케이 (Sik-K), DAX Arranged by GRAY (그레이), DAX