Here’s Fred Astaire peforming Top Hat, White Tie and Tails. He makes wearing a top hat seem as casual as you or I wearing  a T shirt.

And as good as that is, I think his Top Hat performance below is stunning and arguably beats the above. In the following, it’s not enough for him to tap dance with two legs: the cane becomes a third leg, adding additional complexity. Plus the magic of the rising cane and the mirrored images all add up to an astounding performance.

 Fred Astaire – Puttin’ On the Ritz

P.S. Watch how he moves the camera to his left in order for the crew to presumably switch canes with one attached to a string that can be elevated….magic!

P.S.S. Wikipedia has a good compare and contrast of these two numbers here.