I'll level with you: this game is a piece of crap. Jonas is the worst kind of cash in, relying on the inexplicable love that young girls seem to have for some abstinent androgynous pukes to flog a few copies. It's actually based on a sitcom that's itself based on the Jonas Brothers - and is broken, boring and downright creepy in parts.
But here's the thing. It also happens to be all kinds of cheap; making it a perfect stocking filler for a fan of the show (your kids, perhaps?) or as a joke present for someone you don't like.