keith urban sings for american cancer society

Keith Urban, Colbie Caillat and Justin Bieber are among those who have recorded versions of "Happy Birthday to You" for an ongoing campaign sponsored by the American Cancer Society. The project, part of the organization's effort to be recognized as the "official sponsor of birthdays," is designed to call attention to the 11 million cancer survivors celebrating birthdays each year. The video campaign also features versions of the song recorded by Maroon 5, Jack Johnson, Devo and jazz musician Dave Koz.