 It was released digitally on May 24, 2007 and was available on the CD and DVD of the Live Earth concerts on December 4, 2007.Musically it is a stripped-down, folksy ballad with straightforward, anthem-like lyrics talking about how to save the world from destruction.The song received generally mixed reviews, with one group of reviewers commenting that the modest message of the song was uninspiring while others called the song sweet and commended Madonna's commitment to charity.