From Nico Video: sm4220022 Please note that Miku is not singing in this version. The dance was created using Miku Miku Dance. Original video: http://www.nicovideo.jp/watch/sm4220022 *A Vocaloid is a voice synthesizer. This software is primarily used to produce songs. For more information consult Wikipedia at http://en.wikipedia.org/wiki/Vocaloid .