TV journalist Katie Couric couldn't let April 1 pass without pulling an April Fools' Day prank on new The Late Late Show host James Corden.
Corden introduced Couric as his next guest. When she stepped onto the stairwell to make her way to the stage, she took a tumble. Corden rushed to her aid only to discover it wasn't Couric, but a body double. Couric appeared at the top of the stairs and started shouting "April Fools!"
Watch the clip below!