That had me going for a minute. Otis Regrets, my arse.

Actually it all takes me back to the first record I ever heard of Bulgarian music. It included a track of a singer accompanying himself on the bagpipes. "Ahah", thinks I, "they must have bellows blown bagpipes in Bulgaria."

Wrong! They just have enormous airbags in Bulgaria and the trick is to play the tune whilst blowing the bag up, sing a verse, play the tune again, while replenishing the air supply, sing another verse, and so on.

But for sheer breathtaking virtuosity, you should have seen Peg Leg Sam, the only one legged step dancer I ever heard about at any rate. You can see a film of him here