The Jersey Shore star tries on Halloween costumes in Paramus, N.J. Plus: Eva Longoria Parker, Madonna, Cameron Diaz and more


Justin Timberlake, Christina Aguilera and Diddy at a special concert to benefit Shriners Hospitals for Children in Las Vegas on Saturday. Later that night, newly single Aguilera took her crew of dancers and friends to TAO Las Vegas where she stayed until nearly 3 a.m.