【鏡音レン】"No pants ☆ Boogie" english subbed (annotation)
Music title:No pants ☆ Boogie
(Furuchin ☆bugi)
Singer: 鏡音レン（Len Kagamine）
Music, Lyrics written & voice edited by チーターガールP (CheetahGirl-P)
http://www.nicovideo.jp/watch/sm2074437
Illustrated by 何故これをP（Nazekorewo-P)
Reprinted from Nico Video
http://www.nicovideo.jp/watch/sm3444252