Among the stars on hand at Sony Pictures Studios in Culver City were Hollywood hotties such as Vanessa Hudgens, Diane Lane, Mandy Moore, Brenda Song, Olivia Munn, Kristen Bell and Leona Lewis.
Also joining in on the festivities were "True Blood" star Sam Trammel and "Brothers and Sisters" stud Dave Annable, with Cindy Crawford, Kelly Osbourne and cancer survivor Christina Applegate also working the arrivals carpet.
As for Stand Up to Cancer, the special took over all of the major networks with Will Smith, George Clooney, Reese Witherspoon, Sally Field, Laura Linney, Jim Parsons, and cancer survivor Michael C. Hall all partaking in the charitable cause.
