The celebrities came in droves last night for the Stand Up to Cancer event in Culver City, Calif., hosted by Reese Witherspoon and husband Jim Toth.
It's a truly worthy cause, so we're glad to see that the stars stepped out in style for the charitable gala benefitting the American Cancer Society. And when it came to the red carpet, everyone earned high marks in the fashion department.
Host Reese was glowing in a bright orange Roland Mouret dress with a plunging neckline and white panels on the side. And fellow blonde Gwyneth Paltrow looked absolutely stunning in a cobalt blue David Koma cutout dress. We're having some major ab envy right now!
Another stunner? Jessica Alba, who looked simply beautiful in a dark berry lip and a white leather floral Ralph Lauren dress.
Click through our gallery to see all the stylish stars at the event.