Why Wasn't Paris Hilton at Nicole Richie's Wedding?

When Nicole Richie got hitched to Joel Madden this weekend in front of friends?such as Gwen Stefani, Ashlee Simpson-Wentz and Khlo� Kardashian Odom?at dad Lionel's Beverly...

Pamela Anderson K D Aubert Paris Hilton Danica Patrick Kareena Kapoor