IGN Seems to have had a first peek at Superstar already. They posted a bunch of new screenshots. Among those there are 4 screenshots, each showing the celebrities that come with the game: Britney Spears, Christina Aguilera (not an actual screenshot, but a render), Andy Warhol and Marilyn Monroe. You can also see a shot of a quite busy studio town area. Besides all that, there are a few other shots and a render of a photoshoot. You can all find them right here. You can also find some older screenshots and movies there.