Kardashian has two sisters, Kourtney and Khloe, and one brother, Robert. She also has stepbrothers Burton Jenner; Brandon Jenner; and reality TV star Brody Jenner; stepsister Casey Jenner; and half-sisters Kendall and Kylie Jenner.O.J. Simpson is Kardashian's godfather.

While attending high school Kardashian worked at her father's music marketing firm, Movie Tunes.

In 2000, Kardashian married music producer Damon Thomas; their relationship ended in divorce in 2004. In 2007, she began dating Reggie Bush.

Someone crashed Kim Kardashian's 28th birthday party Saturday night in Las Vegas, but she definitely didn't mind.

Kim spent her actual birthday on Oct. 21 in a New Orleans hospital as her NFLer boyfriend Reggie Bush recovered from knee surgery. So Bush, whose New Orleans Saints played without him today overseas in London, decided to repay the favor.

Kim, sisters Khloe and Kourtney, Robin Antin and others, were partying in Kim's hotel room at the Luxor on Saturday night when the doorbell rang just a half hour before they were to head down to the nightclub LAX.

When Kim opened the door, there stood Reggie, who the Saints coaching staff had given the OK to fly to Vegas at the last minute. "He is doing better than expected and returning to the field soon," says an insider.

Of the surprise, Kim tells E! News exclusively, "We had the best time! It was a birthday I will never forget. He wins the best boyfriend award!"