Stars visiting "The Ellen DeGeneres Show" should be very, very afraid.
Ain't nobody scare her guests quite like Ellen DeGeneres, who just can't resist making the celebrities who come on her show jump out of their seats.
And we love watching it just as much as she loves doing it.
With Halloween right around the corner, we gathered a comprehensive list of the dozens of times she's elicited screams of pure terror from her famous guests, including Taylor Swift, Jennifer Lopez, Julia Roberts, Justin Bieber, Jennifer Aniston, The Avengers and, yes, even Richard Simmons.
Clear your schedule, sit back and enjoy.