Jimmy Fallon, Justin Timberlake

Jimmy Fallon and Justin Timberlake are at it again.

On Tuesday night, the duo followed up their four-part "History of Rap" with the "Evolution of End Zone Dancing." From doing the worm to taking a selfie to "Tebowing,", Fallon and Timberlake demonstrated their awesome (and hilarious) moves.

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But what got Timberlake in a huff at the end? Hint: It involves some very familiar choreography. Watch: