【Project DIVA 2nd】 reverse rainbow 【PSP】
Hatsune Miku: Project DIVA 2nd PV - Reverse Rainbow
Alternative PS3 Version: • 【Dreamy Theater 2nd】 reverse rainbow 【PS3】
Original Upload:
【Project DIVA 2nd】逆さまレインボー【EDIT PV】 by reveriey
http://www.nicovideo.jp/watch/sm13787402
A Vocaloid is a singing voice synthesizer. The software enables users to synthesize "singing" by typing in lyrics and melody, using specially recorded vocals of voice actors or singers.
http://en.wikipedia.org/wiki/Vocaloid