The song is a power ballad. It talks about love and faithfulness in times of feeling down or worthless. Since its release, the track had also became a major hit for the British girl group Girls Aloud in 2004. American singer Carrie Underwood recorded the song in 2007. She did so as a charity single to help others. Colombian singer Shakira recorded the song as a charity single as well. It was to raise money for the victims of the 2010 Haiti earthquake.