Justin Timberlake, Fergie along with many others were at the Rolling Stone, Pre-grammy party last night in L.A.  The guest list includes: Justin Timberlake, Black Eyed Peas, Timbaland, Haylie Duff, Ivanka Trump, lovebirds: Vanessa Manillo & Nick Lachey, Wilmer Valderrama,  Laura Prepon, Nelly Furtado, Kid Rock,Sara Ramirez, Jai Rodriguez , Sean Diddy Combs, Taryn Manning and of course Kevin Federline who seems to be everywhere these days.