@etan,
Not sure, but I remember seeing that the guy who played Biff in the Back to Future movies does a comedy singing act--I watched one of his routines that was about (of course) being known only for rapping Michael J Fox on the noggin and saying "McFly, hello!", etc... I wonder if this might be another one of his routines...I'm gonna have to do some googling now, I'm curious
editing...
Okay, I searched it and I think it is him--his name is Thomas F Wilson, and I think the song about being Biff talks about the Gary Busey thing too--but I'm not sure because i can't listen to the song right now... see, I'm supposed to be doing schoolwork, and I don't want my husband to know that I'm actually goofing off... and I suspect that if he hears the comedy stylings of Tom Wilson issuing from the computer speakers I'm going to have a hard time convincing him that it's something to do with an assignment