The couple head out for a low-key date in Beverly Hills. Plus: Justin on tour, Brad & Angelina and more

SPECIAL PERFORMANCE

Christina Aguilera belts it out for birthday boy and lumber mogul Joe Hardy (he turned 84) during his extravagant bash Saturday at Nemacolin Woodlands Resort, in Farmington, Pa. Later Bette Midler and Robin Williams took the stage to perform for the crowd of 500 at the marathon celebration, which lasted 12 hours.