Nicole Richie has been voted the world's worst-dressed celebrity. 'The Simple Life' star was given the dubious honor by animal rights group PETA because of her love of fur. The activists said: "This pelt-wearing party girl is all animal skin and bones. She's an incredible shrinking woman with the heart to match."'Desperate Housewives' actress Eva Longoria also made the list, with PETA fuming: "You'd think she'd be more sympathetic to the plight of rabbits considering the way she screws around like one on Wisteria Lane. "Ashley Olsen, 20, was the runner-up on the annual list. PETA said of the thin actress: "Wearing fur does add 20 pounds, but if Ashley wants to fill out her frame, we suggest using a fork instead."Last year's winner, Nicole's close friend Paris Hilton, failed to make the list since she vowed never to wear fur again after watching a shocking video detailing how animals are killed for their pelts. PETA are now considering asking the hotel heiress to become one of their "I'd rather go naked than wear fur" models.