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

BLONDE AMBITION

After causing a stir with her brunette wig, Paris Hilton is back to her platinum-blonde tresses at a party at the Fenix Restaurant in Hollywood at a party for the book Fashionistas on Tuesday. An animated version of Hilton will appear on South Park on Wednesday (but the hotel heiress didn't participate in the show).