All the Grammys heads are in LA to celebrate the awards, but the pre-parties are obviously where the real fun is. Justin was on hand to perform at the Rolling Stone party; unforch it looks like Scarlett wasn't there to reenact the sexy good times from the video. Tons of celebs were also in the hizz like...Papa J Simpson (um, can you saw awkward with Nick Lachey and Vanessa?)...Kevin Federline...and Fergie (though I'm still not entirely convinced that's her. Seriously). Good times.
For more pictures, inlcluding Donald Faison, Kevin Federline, Sara Ramirez, David Spade and more just
Images include, David Spade, Donald Faison, Eric Balfour, Fergie, Haylie Duff, Ivanka Trump, Jai Rodriguez, Joe Simpson, Justin Timberlake, Kate Walsh, Kevin Federline, Kid Rock, Laura Prepon, Lauren Conrad, Mark McGrath, Melinda Clarke, Nelly Furtado, Nick Lachey, Sara Ramirez, Diddy, Seth Green, Timbaland, Vanessa Minnillo, Whitestar, will.i.am, Wilmer Valderrama