Marie Claire cover girl Blake Lively showed up on The Tonight Show to promote The Shallows (AKA that completely terrifying-looking shark movie), and played a game of "Know It All" with Jimmy Fallon.
Only this was no mere "game" to Blake. Girl came to win. She also came armed with a bunch of not-at-all-nerdy Harry Potter knowledge (#hero), and called Jimmy Fallon out for saying "shit" on television.
Basically, she wiped the floor with him in the most literal way possible:
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Watch below to see Blake slay as Jimmy struggles to get in formation.
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