Oldies and Nudies

"Oldies and Nudies" is an instrumental rock song that Alf Clausen wrote that, according to the album it appears on, The Simpsons: Testify, was written for the episode "Homerpalooza".

Behind the Laughter
According to an interview with Alf Clausen, "[it] was a rock and roll track that I wrote for the end of a Homer party down show, like an Animal House thing, and the producers actually ended up licensing one of the songs from Animal House." So, at the moment, the episode it was written for is not known. But what is known is that it is the final track on the album.