Nicole Richie

Nicole Richie, the adopted daughter of Lionel Richie, has made Hollywood headlines largely due to her party lifestyle and her on-again, off-again friendship with her Simple Life costar Paris Hilton. Scandals including issues with anorexia and a 2006 DUI arrest have secured Richie's spot as a member of the wild crew of "young Hollywood." DJ Adam Goldstein and Brody Jenner have each had romantic flings with the skinny star, but Richie has been dating Good Charlotte rocker Joel Madden

since 2006. The couple gave birth to their daughter Harlow Winter Kate Madden in January 2008 and are currently expecting their second child.