Kristin Cavallari annoys almost as many people in real life as she does on TV. The star of "The Hills" was hosting a fashion show at club Tantra in St. Maarten with Victoria's Secret beauty Selita Ebanks when she decided to playfully toss some glitter at catwalking models, who didn't appreciate the gesture. "After the show, four of the models had to be restrained from trying to start a fight with her while she was in the DJ booth with Robert Iler and DJ Ruckus," says a spy. "One of them grabbed her by the hair before the fracas got broken up." Club security eventually escorted the miffed models out before anyone broke a nail.