John Cena chats about the hate he's getting for growing his hair out for an action comedy with Jackie Chan and uses Jimmy to demonstrate the "Lightning Fist" move he learned on set and added to his WWE Five Moves of Doom. Subscribe NOW to The Tonight Show Starring Jimmy Fallon: bit.ly/1nwT1aN Watch The Tonight Show Starring Jimmy Fallon Weeknights 11:35/10:35c Get more Jimmy Fallon: Follow Jimmy: Twitter.com/JimmyFallon Like Jimmy: Facebook.com/JimmyFallon Get more The Tonight Show Starring Jimmy Fallon: Follow The Tonight Show: Twitter.com/FallonTonight Like The Tonight Show: Facebook.com/FallonTonight The Tonight Show Tumblr: fallontonight.tumblr.com/ Get more NBC: NBC YouTube: bit.ly/1dM1qBH Like NBC: Facebook.com/NBC Follow NBC: Twitter.com/NBC NBC Tumblr: nbctv.tumblr.com/ NBC Google+: plus.google.com/+NBC/posts The Tonight Show Starring Jimmy Fallon features hilarious highlights from the show including: comedy sketches, music parodies, celebrity interviews, ridiculous games, and, of course, Jimmy's Thank You Notes and hashtags! You'll also find behind the scenes videos and other great web exclusives. John Cena Demonstrates His Sixth Move of Doom on Jimmy Fallon www.youtube.com/fallontonight #FallonTonight #JohnCena #JimmyFallon