Jennifer Aniston played a prank during a radio chat which led to an extremely uncomfortable interview.
The Hollywood actress joined forces with DJ Scott Mills at Radio 1 to make his sidekick Chris Stark squirm by being "super mean".
When Chris asked whether fame made it difficult to chat someone up, she told him his question was inappropriate and she was "committed to somebody - I don't hit on people".
And she looked stunned when he asked her if she'd ever consider penning a Fifty Shades Of Grey-style novel.
The broadcaster was eventually put out of his misery when Scott came in to reveal the prank, leaving Chris with his head in his hands.
Chris tweeted afterwards: "I have never felt how I felt in this five minutes with Jennifer Aniston... shaking right now."
Meanwhile, the Horrible Bosses 2 star went head to head with Lisa Kudrow on Jimmy Kimmel Live!'s Celebrity Curse-Off.
The former Friends stars had to take it in turns to say swear words at each other and Lisa eventually lost when she shouted: "Snap pants!"
Jen has been playing plenty of pranks recently to promote her new movie - including donning a giant, inflatable "Kim Kardashian" chest on Ellen DeGeneres' show.