Back in college it always amazed me when our SCA musicians would dance while playing their recorders. I find it hard enough to do one or the other by itself.

Here's something even more amazing! A video of a Riverdancing Violinist!

Playing a violin's even harder (for me) because finger placement has to be so precise. Add dancing to that... wow.

From other links on the YouTube page, these performers appear to have quite a few music skits of this sort. Their web site shows tour dates going back a couple years but they seem to stay in Europe, unfortunately.