Paris Hilton and Nicole Richie host the sixth annual gala, which features scheduled music performances by Blink-182, Lenny Kravitz, Ashlee Simpson and JoJo. Also: appearances by Ashton Kutcher, Mischa Barton, Christina Applegate and Jimmy Fallon. Taped Aug. 8, 2004 at L.A.'s Universal Amphitheatre.