I Want a New Drug theme song of the 1984 film "Ghostbusters" was released, Huey Lewis sued Ray Parker Jr. for copyright infringement, claiming that Parker had stolen the melody from "I Want a New Drug". Lewis had been approached to compose the main theme song for the film, but had to decline because of his work on the soundtrack for "Back to the Future". The two parties settled out of court. Details of the settlement (specifically, that Columbia Pictures paid Lewis a settlement) were confidential until 2001, when Lewis commented on the payment in an episode of VH1's "Behind the Music". Parker subsequently sued
Theme music Theme music Theme music is a piece that is often written specifically for a radio program, television program, video game, or movie and is usually played during the intro, opening credits, and/or ending credits. The phrase theme song or signature tune may also be used to refer to a signature song that has become especially associated with a particular performer or dignitary, often used as they make an entrance. The purpose of a theme song is often similar to that of a leitmotif. Such songs can also be used in other ways. One author has made extensive use of them