I saw a poster for this band in the record store next door to where I work the other day. Their major label debut single "Doll" came out this week, and they're called Scandal:
According to Wikipedia they are actually high school students, and they've already done a US tour which took in some of the comic and gamer conventions. The single's not great, but it's not terrible either, and they're well represented on you tube if you want to check it out. So there you go!
At least they're not AKB48!