Arnold Schwarzenegger Dresses as Terminator, Pranks Tourists
McDonald's Hot Sauce Prank is Terrible, Hilarious: Watch Now!
YouTube Prank Backfires in Horrific Fashion: Watch Now!
Chris Pratt: Pranked in Jurassic World Interview!
Justin Bieber and Hailey Baldwin: Engaged?!
First Justin Bieber was in love with Selena Gomez, then dating Kendall Jenner, then groping Ariana Grande at a concert ... and now he's engaged?!
To Hailey Baldwin?! Say it ain't so, #Beliebers across the world!
Jimmy Kimmel on Dennis Quaid Meltdown: Not My Handiwork!
Jimmy Kimmel says he wasn't behind the viral video of Dennis Quaid's meltdown on a movie set, though he acknowledges why people might assume he was.
Rihanna Pulls Epic Prank on Jimmy Kimmel: Watch Now!
So... how does it feel, Jimmy Kimmel?!?
The talk show host - whose memorable pranks have included this epic Twerking fail and this crazy Christmas decorating of John Krasinski's house - ended up the victim of a different celebrity's prank on Wednesday morning.
28 April Fools' Day Pranks: You've Been Warned!
Be careful about what you read on the Internet today.
Justin Bieber: Pranked by Male Model on Ellen!
Hey, Justin Bieber.... GOTCHA!
The singer - who just recently stopped by Ellen and pranked a fan over the phone - was the victim himself of a classic Ellen DeGeneres scare tactic during his latest appearance on the talk show.
Justin Bieber Prank Calls Fan on Ellen: Listen to His Accent!
Justin Bieber has apparently moved permanently on to the set of Ellen DeGeneres' talk show.
A couple weeks ago, the singer appeared on Ellen to publicly apologize for his run of indecent behavior.
Dad Convinces Wife He Launched Toddler Off Balcony in Viral Prank Video: Hilarious or Horrible?
The best prank videos usually involve en element of cruelty.
After all, you can't have a prank without a victim, and sometimes that victim breaks into hysterical tears, as we learned from yesterday's pregnant turkey prank.