Kristin Cavallari: 'The Hills' is a Great Show

Say what? Laguna Beach alum Kristin Cavallari celebrated her 21st birthday in Las Vegas on Sunday and complimented her rival’s (Lauren Conrad) show, The Hills. Cavallari wouldn’t divulge whether she will be joining the cast but did say, “It’s a great show.” You know what that means… So how did Kristin celebrate her big day?… Read More »