These Jimmy Fallon moments will have you rolling on the floor in laughter. Welcome to WatchMojo, and today were looking at the funniest moments from Fallons time on both Late Night and The Tonight Show. Our countdown of the hilarious Jimmy Fallon show moments includes Matthew McConaughey & Hugh Grant Swap Iconic Movie Lines, Roller Coaster Ride with Kevin Hart, Bradley Cooper & Jimmy Cant Stop Laughing, Lip Sync Battle with Emma Stone, and more! Which Jimmy Fallon show moment had you ROFL-ing? Let us know in the comments.

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