Provided to YouTube by Loen Entertainment IncRooftop (옥탑방 (Rooftop)) · N.FlyingFLY HIGH PROJECT #2 'Rooftop'℗ 2019 FNC Entertainment,under license to Kakao M Corp.Released on: 20190102Author: 이승협 (J.DON)Composer: 이승협 (J.DON)Arranger: 이승협 (J.DON)Arranger: 김수빈Autogenerated by YouTube.