Late Late Show host James Corden got the fright of his life when after introducing guest Katie Couric, she seemed to take a nasty fall down a flight of stairs. Turns out, it was just an April Fools' Day joke, with the fall actually being taken by a stuntwoman and the real Couric at the top of the stairs. Some are saying that the prank was funny, others say that it was cruel. Watch and decide.

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