The singer gets ready for her performance at the Rockefeller Center tree lighting. Plus: Clay Aiken, Hilary Duff, Paris Hilton and more

SHOP GIRL

On a break from shooting The Dukes of Hazzard, Simpson enjoys holiday-weekend shopping in New York City's hip NoLita neighborhood with her mom, Tina (not pictured), on Sunday. Among her stops: The vintage boutique Sweet Tater and luxe shoe store Geraldine.