"Rainbow Connection" is a song from the 1979 film The Muppet Movie, with music and lyrics written by Paul Williams and Kenneth Ascher. The song was performed by Jim Henson – as Kermit the Frog – in the film. "Rainbow Connection" reached No. 25 on the Billboard Hot 100 in November 1979, with the song remaining in the Top 40 for seven weeks in total. Williams and Ascher received an Academy Award nomination for Best Original Song at the 52nd Academy Awards.

The Muppet Movie is a 1979 musical road comedy film directed by James Frawley, produced by Jim Henson, and the first theatrical film to feature the Muppets. A co-production between the United Kingdom and the United States, the film was written by The Muppet Show writers Jerry Juhl and Jack Burns. Produced between the first and second half of The Muppet Show's third season, the film tells the origin story of the Muppets, as Kermit the Frog embarks on a cross-country trip to Los Angeles, encountering several of the Muppets—who all share the same ambition of finding success in professional show business—along the way while being pursued by Doc Hopper, a greedy restaurateur with intentions of employing Kermit as a spokesperson for his frog legs business.