Journalist Katie Couric pulled an amazing April Fools’ prank on The Late Late Show host James Corden Wednesday night, using a stunt double to pretend she fell down the stairs as he welcomed her into the studio. As he rushes off stage and kneels besides the woman who he appears to think is the Yahoo News anchor, the real Katie Couric is standing at the top of the stairs yelling, “Up here! Up here, James! James! April Fools!”
After he gets over the shock, Corden just looks relieved that a guest did not get injured during his first week hosting the show.
Read next: The Best April Fools’ Pranks of 2015