Underwood is a supporter of the United Service Organization, Clothes off our back, and Habitat For Humanity. To benefit cancer research, in August 2008, Underwood joined Beyoncé, Mariah Carey, Mary J. Blige, Miley Cyrus, and other female artists to record the song "Just Stand Up!" The proceeds benefited Stand Up to Cancer (SU2C). As a result of their fund raising efforts, the SU2C scientific advisory committee, overseen by the American Association for Cancer Research was able to award $73.6 million towards novel, groundbreaking research. The song peaked at No. 11 on "Billboard"'s Hot 100 Songs.