Rob McElhenney has shared a photo of himself, Charlie Day, and Glenn Howerton on the set of It's Always Sunny in Philadelphia, confirming season 15 has started production. Created by McElhenney and co-developed by him and Howerton, the series centers on a group of narcissistic friends, better known as The Gang, and their antics running the Irish bar Paddy's Pub in the titular Pennsylvania city. In addition to primarily writing and executive producing the series, McElhenney, Howerton, and Day star in the series alongside Kaitlin Olson and Danny DeVito.

First premiering in mid-2005, It's Always Sunny is one of the most successful sitcoms that continues to resonate with audiences. Even after shifting from FX to sister network FXX, the series has remained consistent in its ratings and positive critical reception. Upon matching the record with season 14, the sitcom's renewal for four more seasons has established it as the longest-running live-action comedy series in American television history.

Related: It's Always Sunny Proves Being Frank Is Pretty Gross

McElhenney took to Instagram to share photos of himself, Day, and Howerton from behind the scenes of It's Always Sunny's set, confirming production on season 15 of the hit sitcom. Though having deleted the photos in the time since, the co-creator and star did share a separate photo illustrating the complete outline of its first 14 seasons. The deleted photos and new post can be viewed below:

Rob McElhenney, Charlie Day and Glenn Howerton in Sunny in Philadelphia
Rob McElhenney, Charlie Day and Glenn Howerton in Sunny in Philadelphia

After a nearly two-year gap between the last season's airing and production beginning on the next chapter, it's exciting to finally see some of the gang back together in person. With McElhenney and Day also busy at work on Apple's acclaimed workplace comedy Mythic Quest and Howerton leading Peacock's A.P. Bio, the gap in production is understandable, especially given the ongoing COVID-19 pandemic. But with McElhenney confirming in April that scripts for season 15 were written up during quarantine, it should hopefully ensure that production moves quickly and The Gang can return to screens by early next year.

Even if he feels coming up with new stories is becoming more challenging this late in the game, there's no denying It's Always Sunny in Philadelphia isn't losing any steps with every new season. From consistent trope subversions to subtle yet effective character development, The Gang continues to deliver the bold laughs and exciting stories fans have come to expect for the past 15 years. Hopefully, McElhenney and co. can deliver more teases from behind the scenes as production continues on the next chapter of the sitcom.

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Source: Rob McElhenney/Instagram