Elizabeth Taylor's 2001 Golden Globes gaffe apparently was no fluke: The Hollywood legend really is losing her marbles. At Saturday's much-hyped Big Apple wedding of Liza Minnelli and producer David Gest, Taylor — the co-matron of honor — arrived wearing slippers! According to USA Today, she left her shoes at the hotel. (They were later retrieved for her.) Other stars attending the lavish ceremony: Taylor's date, best man Michael Jackson, Diana Ross, Anthony Hopkins, Michael Douglas, Elton John and Rosie O'Donnell. Not surprisingly, there were a number of B-listers in the crowd as well, including David Hasselhoff, Phyllis Diller, Sally Kirkland and Robert Goulet.