Only one closing credits song?

[obriensg1]

So my buddy and I just watched "Red Rock West" (which is a great film noir by the way). At the end the song 'A Thousand Miles From Nowhere' plays as the credits roll. It's the only song played and my best friend commented he couldn't remember seeing a movie where only song or piece of music played at a film's end. I know I've seen one or two more, but nothing springs to mind. Can you help me out?

Edit: Phenomenon is another one. Entire ending, one song