Breast Cancer Research Foundation and Stand Up to Cancer Grammy winner Sheryl Crow had been engaged to cancer survivor and philanthropist Lance Armstrong, but it was after their breakup in early 2006 that she was diagnosed with breast cancer herself. Surgery and radiation therapy followed, as did the singer's commitment to raising funds for cancer research. She recorded a PSA for California research and treatment center City of Hope, she's hosted fundraisers for and participated in the annual Revlon Run/Walk event in Los Angeles, and she teamed with Major League Baseball to produce and perform at a free Stand Up 2 Cancer concert that tied in with the 2009 MLB All-Star game. "I am personally committed to organizations that support breast-cancer research. I am a fan of the Breast Cancer Research Foundation and Stand Up to Cancer," Crow told American Way magazine in 2009. "Even in a down economy, these organizations fight tirelessly for the funds critical to keep scientists working on (finding) a cure."