[Perez Hilton flashes the pink carpet. Photos via Getty]

Celeb gossip blogger, Perez Hilton celebrated his 31st Birthday this Saturday at the legendary Viper Room on Sunset Blvd with the real Paris Hilton along with Christina Aguilera (surprise performer), the Jonas Brothers (who brought out his cake), and guests including Amanda Bynes, Ashley Tisdale, Aubrey O'Day, Brittany Snow, Brittney Gastineau, Christina Aguilera, (more story and photos below)... More»