Not only that, but since JAM Project is a super group, each member is fairly amazing in their own right. One of their members sang Cha-la Head Cha-la and the first One Piece OP theme "We Are". One of the founding members held a 1000 song concert in the span of 24 hours (the same member who sang the Mazinger Z OP among many others) and between them all, they've sang countless tokusatsu and super robot OPs.They are. They are the band that does the intro and credit music in the Super Robot Wars Games I play. They also do some anime OPs and EDs.