Jason Wilber also recorded THE BALLAD OF AMAZING GRACE AND SIDESHOW DAN but he spelled SIDESHOW as one word. It's on his album "Behind the Midway," Flat Earth CD 122, 2000.

I transcribed the following from a couple of sound samples found at Yahoo! Shopping > Music:

... Amazing Grace, how sweet she was.
Sideshow Dan was a hog of a man and he was crooked as a funhouse stairs,
So ev'ryone smiled when he whispered lies about his secret love affairs.
Oh, you can bet that Dan was a happy man when Grace walked by his side.
She had a face like an angel and a body like a building and she laughed like a funhouse ride.
Dan always promised to take his Grace ....