David Bromberg Band -- "Debby Boone"
https://www.youtube.com/watch?v=cwstrFCJTdQ
Squeezed onto the last scrap of vinyl on Side A. The groove goes all the way to the label, causing it to bounce back a bit and form a loop (on my copy, at least; it kept an "automatic" turntable from picking up the stylus). A real WTF? moment the first time you hear it.
I wonder if she's ever heard it.