Gonna Paint Our Wagon is a song from the movie musical version of Paint Your Wagon that Bart and Homer rent in the musical All Singing, All Dancing performed by Lee Marvin and Clint Eastwood. In reality, there is a movie musical called Paint Your Wagon based on the Broadway show by Lerner and Lowe starring Marvin and Eastwood, but this is not a real song from the movie. The music was written by Alf Clausen and the lyrics by Steve O'Donnell. It is part of the third track on the album Go Simpsonic with The Simpsons.