Band : Dieu (Official Site)

Lily[Vocal]  | 奈緒[Right Guiter]  | Sarah[Left Guiter]  | 雫[Bass]  | 悠[Drum]

They are band "Dieu"

this official site :http://dieu-official.com/

here's their Support-page: 

http://www.facebook.com/pages/Dieu-Support/206273249486681