I played about 40 minutes on the PS3 today and I have to say it was F'n funny as all hell and a very fun. It was awesome to see a game that had all those "rock" quotes you've always wanted to say etc...
The game is only out on PS3 and 360 and is seeing some great reviews. If you have any interest and like Jack Black and his humor you'll love this game. It stars Lemmy from Motor head, Lita Ford, Ozzy, Jack Black and a bunch of other rock legends.
I took a pic with my phone while the game was paused. This is Lita Fords character right after you arrive at the freedom fighters base.