The Hills Kristin Cavallari admits prior cocaine use but denies current drug use 05/05/2010 Kristin Cavallari revealed that she has previously used cocaine but said recent claims and speculation that she currently uses the drug are much ado about nothing. 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: Kristin Cavallari Audrina Patridge
