Paris Hilton attends the 17th Annual Race to Erase MS event at the Hyatt Regencey Century Plaza Hotel in Los Angeles, California.

Nicky Hilton attends the 17th Annual Race to Erase MS event at the Hyatt Regencey Century Plaza Hotel in Los Angeles, California.

Avril Lavigne attends the 17th Annual Race to Erase MS event at the Hyatt Regencey Century Plaza Hotel in Los Angeles, California.

Jessica Lowndes attends the 17th Annual Race to Erase MS event at the Hyatt Regencey Century Plaza Hotel in Los Angeles, California.

Anne Heche attends the 17th Annual Race to Erase MS event at the Hyatt Regencey Century Plaza Hotel in Los Angeles, California.

Brooke Burke attends the 17th Annual Race to Erase MS event at the Hyatt Regencey Century Plaza Hotel in Los Angeles, California.

Ali Landry and daughter Estela Monteverde attend the 17th Annual Race to Erase MS event at the Hyatt Regencey Century Plaza Hotel in Los Angeles, California.

Debbie Gibson attends the 17th Annual Race to Erase MS event at the Hyatt Regencey Century Plaza Hotel in Los Angeles, California.

Kelly Rutherford attends the 17th Annual Race to Erase MS event at the Hyatt Regencey Century Plaza Hotel in Los Angeles, California.

Brody Jenner and mom Linda Thompson attend the 17th Annual Race to Erase MS event at the Hyatt Regencey Century Plaza Hotel in Los Angeles, California.