Ellen Degeneres loves to scare her guests. I'm sure she's given more celebrities practice heart attacks than anyone on the planet. Fortunately, nobody's had a real one yet! Her scare-ees have included Taylor Swift, Jimmy Fallon, Jack Black, Justin Bieber, Tracy Morgan, Jennifer Aniston, Pink, and more. Her latest victim was Sam Smith, and she got him good - twice!

More From 99.9 KTDY