Paris Hilton's socialite co-star on The Simple Life.
She first met best friend Paris Hilton, while studying at The Buckley School.
She is the former BFF of Paris Hilton, and starred in a short-lived reality show with her.
She married Joel Madden in 2010, and the couple had a daughter in 2008.
She attended the University of Arizona at the same time that Kourtney Kardashian did.