The Hills 'The Hills' co-stars Heidi Montag and Lauren Conrad continue to feud 06/12/2007 The world continues to rotate on its axis and The Hills co-stars Heidi Montag and Lauren "L.C." Conrad continue to battle as former BFFs. 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: Lauren Conrad Heidi Montag
