"Starlight Express" is the 'showstopper' number from the musical Starlight Express. In the show, it is performed by Rusty, the show's protagonist. Before the song, he has been told by the old steam engine Poppa of a magical locomotive, named the Starlight Express, who will aid him in need. The song has been rewritten in many languages, but has always kept the same title, apart from when the production opened in Mexico, when both the show and the song were renamed Expreso Astral.