Last night's post on great dance scenes drew an interesting comment that Christopher Walken started his career as a dancer, not an actor.
A tap dancer.
Oh ho, I said to myself. I'll bet Youtube has something on offer here, and it does indeed:
From the 1981 Steve Martin film "Pennies for Heaven". Three years after his entirely bad-ass role in The Deer Hunter.
My only comment is that you could make this video even more awesome, by a judicious application of cowbell ...