Several celebrities attended the ‘A Time For Heroes’ event for the Elizabeth Glaser Pediatric Aids Foundation in Los Angeles on Sunday. Mischa Barton wore wings to the event, probably to fly away and disappear from camera hogging Heidi Montag and Spencer Pratt. The Cheetah Girls Sabrina Bryan, Adrienne Bailon and Kiely Williams looked super duper cute in their cowgirl inspired ensembles. Nicole Richie and her baby daddy Joel Madden looked comfortable – I know Nicole probably missed her little one. Also in attendance was Kelly Hu, Blair Underwood, Denise Richards, Lauren Conrad, Garcelle Beauvais-Nilon, David Arquette, and Courteney Cox Arquette. View more pictures after the jump –