Starlight Express is a 1984 musical, with music by Andrew Lloyd Webber and lyrics by Richard Stilgoe. It tells the story of a young but obsolete steam engine, Rusty, who races in a championship against modern engines in the hope of impressing a first-class observation car, Pearl. Famously, the actors perform on roller skates.

"Only You" is the love duet from Andrew Lloyd Webber's Starlight Express. It is performed by the protagonist, Rusty, a young steam locomotive and his true love, the observation car, Pearl.