20170220 JYP ENT Official Full ver. Music Video4th Mini Album "TWICEcoaster : LANE 2" Title Track "Knock Knock"You Tube JYP公式Chの和訳を引用させて頂きました https://www.youtube.com/watch?v=8A2t_tAjMz8
http://www.nicovideo.jp/watch/sm30672563