"Lifesong" is a song recorded by Christian rock band Casting Crowns. Written by Mark Hall and produced by Mark A. Miller, it was released as the lead single from the band's 2005 album of the same name. According to Mark Hall, the lead vocalist of Casting Crowns, "Lifesong" came out of what he found himself saying to students in his church's youth ministry. Compared to the work of rock band U2, the song lyrically points believers towards honoring God in all they do.