A medical student needing to make a good grade on his anatomy final decided to do some late night cramming. He checked out a cadaver and began his review. That's when he noticed a cork in the cadaver's rectum.
This being very unusual he carefully removed the cork. Immediately the student heard music coming from the rectum. It was Willie Nelson's "On the Road Again". Startled he placed the cork back in and the music stopped.
He sat stunned for a minute or two wondering if he had just imagined it or if what he heard was real. So he removed the cork again and the same song was still emanating from the rectum.
Totally alarmed he shoved the cork back in ran out of the room. He found a professor and frantically dragged him back to the exam room. "You've got to hear this!" he exclaimed as pulled the cork out. Just as before the rectum played "On the Road Again".
"That's easily explained", said the Professor. "Any a$$hole can sing Country and Western Music".
