Just in time for football season, Jimmy Fallon & Justin Timberlake show you how 'The Evolution of End Zone Dancing' began. They start with the Ickey Shuffle, and it's nothing like the Cupid shuffle. Then, the surprise dance at the end had Justin Timberlake a little upset. Check out why.

Here are some 'you can't do these celebration' dances and other weird things that NFL players used to do. Of course, the number one celebration goes to Joe Horn.

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I Love Football Season!