Back in 2011, three members of Kings Of Leon cameoed on a high school reunion episode of It’s Always Sunny In Philadelphia. When it aired, member Jared Followill tweeted, “Maybe #KingsOfLeon and #SunnyFX can reunite one day. ;)” and two years later, they have. In anticipation of Leon’s upcoming album Mechanical Bull, the band of brothers enlisted three Philly cast members to create a promo video for the record and it’s just as narcissistically absurd as you would expect. The clip features Danny DeVito, Charlie Day, and Glenn Howerton, all playing themselves, despite the video being named “Dennis Makes A Kings Of Leon Promo.” The group is having a bit of a comedy year, working with Portlandia and SNL’s Fred Armisen as director for their Unstaged performance as well as “awarding” him the honor of best member of the band. Watch the Sunny promo below.

(via SPIN)

Mechanical Bull is out 9/24 via RCA.