"Believe" is a song performed by Josh Groban. The lyrics and music were written by Glen Ballard and Alan Silvestri. The song is from the 2004 film The Polar Express and is included on the film soundtrack. The song is also included on the 2011 album Heavenly Christmas, performed by Jackie Evancho, and the deluxe edition of Groban's Noël album, marking the first time for inclusion on a Groban release.