The daughter of one of O.J. Simpson's head trial lawyers, Robert Kardashian, step-daughter to Olympian Bruce Jenner and step-sister to Hills star Brody Jenner, Kardashian first hit the scene as one of Paris Hilton's party pals.
Kardashian became known outside the gossip circuit when a pornographic video of her and then-boyfriend, rapper Ray J appeared on the Internet in 2006.
In 2007, the blended Jenner-Kardashian family was subject of a new E! reality show called Keeping Up With the Kardashians. The show became a huge hit and led to Kardashian's December 2007 Playboy cover photo shoot – which was chronicled on the series - and her own workout video. Kardashian co-owns the Calabasas, Calif., clothing store Dash with her sisters and split from New Orleans Saints NFL star Reggie Bush in July 2009 after two years together. In October 2009, Kardashian and Bush reunited after almost four months apart. They called it quits for good in March 2010.
Shortly after splitting with Bush, Kardashian was spotted getting cozy with Dallas Cowboys wide receiver Miles Austin and Halle Berry's ex, model Gabriel Aubry. She married NBA player Kris Humphries on August 20, 2011; Kardashian filed for divorce 72 days later. Currently dating Kanye West, Kardashian welcomed daughter North West on June 15, 2013.