M COUNTDOWN｜Ep.631<br /><br />′데뷔 카운트다운′ 엑스원<br />DEBUT COUNTDOWN - X1<br /><br />World No.1 Kpop Chart Show M COUNTDOWN <br />Every Thur 6PM(KST) Mnet Live on Air <br />매주 목요일 저녁 6시 엠넷 생방송<BR>M COUNTDOWN 최신 클립 다시보기 : http://www.tving.com/smr/vod/player/P/C01_B120041702
