The top-rated show on UPN, ‘America’s Next Top Model’, is losing the self-proclaimed “world’s first supermodel” and judge Janice Dickinson, but a famous replacement has already been secured. The next incarnation of the show, to appear this fall, will feature Twiggy in Dickinson’s place. “We are thrilled to have Twiggy as a part of this cycle’s judging panel; the show and participants will benefit a great deal from her vast knowledge and expertise,” executive producer Ken Mok said. “With Twiggy and the addition of runway expert J. Alexander as judges, we’re guaranteed to have some lively judging sessions.” Alexander replaces stylist Nole Marin, who will also be leaving the program.