One occasion when I got to observe Vassar Clements was when he was promoting his new album at a record store. He was mainly holding his fiddle and chatting with fans, when suddenly Mike Marshall breezed into the store, pulled out his fiddle and got into a hot twin fiddle version of Old Joe Clark with Vassar.
I was astounded, both by the virtuosity displayed, and by the unrehearsed excellence of the performance. It was a clear clue for me of the high musical potential of fiddling.
In my book, 43 Fiddle Tunes in Tab, I have a beginner version of this tune. This chart is a little more advanced, and more typical of how you hear it played.