The Grammy festivities got off to a festive start Thursday night when the Black Eyed Peas played to a full house at Hollywood’s Palladium club. John Legend, Justin Timberlake and Sean “Diddy” Combs were among those who turned out for the performance. “Diddy was running around with a gigantic entourage following him around everywhere,” says a spy. The Black Eyed Peas, who are nominated for six awards, will also be playing at the ceremony tonight.