ready!!
"READY!! first appeared as a PS3 exclusive song for THE iDOLM@STER 2. This song is choreographed to include one, two, three, or five dancers. READY!! was the opening theme song for THE iDOLM@STER anime and made its debut at THE IDOLM@STER 6th ANNIVERSARY SMILE SUMMER FESTIV@L!! IN TOKYO." [1]
Not to be confused with Readyyy!, the male idol training game for mobile devices.
Links