The Hills MTV to debut new 'The Hills' fifth-season episodes on September 29 07/30/2009 Lauren Conrad's departure wasn't enough to stop The Hills from rolling along. Read More RELATED NEWS Kristin Cavallari debuts new 24-year-old boyfriend Mark EstesBrody Jenner and Tia Blanco welcome their first child'The Hills' alum Brody Jenner engaged to pregnant girlfriend Tiarah "Tia" Blanco TAGS: Get This Party Started Laguna Beach Kristin Cavallari Lauren Conrad Brody Jenner Audrina Patridge Stephen Colletti
