We're working on a TV pilot that features a karaoke contest in a bar. Toward the end, a member of the rival team is seen "singing" 10 seconds of a hip-hop song as picture fades out. His interpretation of it is awful, to the point that it's barely even the same lyrics, and the backing track we made for it is original, and doesn't really derive from the original beat. My thinking is, because we've used so little of the work, and because its "transformative" in nature (not the original recording, poorly done performance), and is used only to make a point in the show, that this constitutes fair use. I was wondering what some experts thought. Thanks for your time.