Halle Berry and Stacy KeiblerChris Weeks/WireImage

On Saturday, Halle Berry and Stacy Keibler co-hosted the 19th annual Revlon Run/Walk for Women fundraiser in Los Angeles. “There is such unity, emotion and hope among the participants and it is truly an honor to once again lend my name to the event and the ongoing fight against women’s cancers,” Berry said. See more stars at this weekend’s hottest events in the gallery.