'Game of Thrones' writers take on 'It's Always Sunny in Philadelphia'

"Game of Thrones" stars Lena Headey and Peter Dinklage with "It's Always Sunny in Philadelphia's" Rob McElhenney (right)

"It's Always Sunny in Philadelphia" mastermind Rob McElhenney tweeted a photo confirming that "Game of Thrones" head honchos D.B. Weiss and David Benioff, announcing that the writing duo penned an episode of the long-running comedy for its upcoming season.

"Game of Thrones" is clearly very different than "It's Always Sunny," which will premiere its ninth season on the newly-created FXX channel in the fall. Here's hoping for a Tyrion Lannister-fuelled makeover of Paddy's Pub, or at least a Charlie-Hodor bromance.

McElhenney is a big "Game of Thrones" fan, recently interviewing the cast of the HBO megahit at an event sponsored by the Academy of Television Arts & Sciences in Hollywood.