KOREAN NCT NCT 127 NCT 127 – Back 2 U (AM 01:27) Back 2 U (AM 01:27) [EP] NCT #127 Limitless 2017.01.06 Taeil, Johnny, Taeyong, Yuta, Doyoung, Jaehyun, WinWin, Mark, Haechan Lyrics/작사: 1월…