April Fools: Katie Couric Pranks Late Late Show

Katie Couric was in the prankster mood when she punked CBS Late Late Show host James Corden.

You can see that she scared the crap out of Corden with her April Fools antics.

Let's go to the video: 

As James introduces his guests for The Late Late Show on April Fools Day, Katie Couric takes an ugly fall down the stairs of Studio 56.