Man, George Clooney's prank war with Tina Fey and Amy Poehler is really getting out of hand. If you don't recall, during the first of their two-year Golden Globe Awards hosting stint, Fey and Poehler made a little joke at Clooney's expense during their monologue: "Gravity is nominated for best film. It’s the story of how George Clooney would rather float away into space and die than spend one more minute with a woman his own age."

Clooney wasn't present for the ceremony, but he certainly heard the joke—and wasted no time declaring full-on prank war against the duo. Speaking to People, Clooney announced, "They have poked the bear with a stick. Oh, they have poked the bear. I don’t want to scare Amy or Tina – I don’t want them to be afraid at all – but they’ve poked the bear." And now, it looks like the war's already begun: In an appearance on Late Night with David Letterman last night, Matt Damon—poor, sweet Matt Damon—revealed his unwilling and inadvertent participation in said prank war, as well as Fey and Poehler's reaction to Clooney's announcement in People

Damon explains that he didn't think he had involvement in said prank war until one night, when he was sitting at home, and two fruit baskets with two letters were delivered to his home. The first appeared to be an apology from Fey and Poehler about any jokes at the Golden Globes that might have hurt his feelings, and the second...

"And then I open letter number two...'dear Matt, if your note is part of some George Clooney prank, as I very strongly suspect it is, you A-list amateurs are going to have to step it the f*ck up.' Their words, not mine! 'We are not some easily confused starlets you're dealing with here, we are grown-ass professional comedians. Please accept this fruit as a token of our sincerity. Best wishes, Elizabeth Tina Fey, and Amy Boston Poehler.'"

As for how exactly Clooney got Damon involved in the prank war without his knowledge...well, that's just too good to give away. Check out the video above for the full story.

[via Uproxx]