Avril Lavigne has finally shed her Rebel Without a Comb image for a new role as an off-beat dancing Hollywood party girl. Avril hosted the New Year’s Eve 2008 party at Prive in the Planet Hollywood Resort and Casino in Las Vegas on Monday night, and we hear the singer was humping tabletops and the nearest vacant couch before the clock struck twelve.

“It was an Avril I’ve never seen before,” a partier tells Fox News. “She totally let loose and was gyrating on all the couches and jumping from table to table while putting on quite the public display with her husband Deryck [Whibley].”