Season 18 of the record-breaking sitcom, It’s Always Sunny in Philadelphia, has just gotten a huge update from its creator. Find out more here.

Plus, everything else you need to know about the show's return.

Season 18 of ‘It’s Always Sunny in Philadelphia’ is in production, with the gang returning to stir chaos again ...

It's Always Sunny in Philadelphia's Rob Mac proved that Mac, Charlie, and Dennis are more dapper in tuxes for Season 18 than for Season 1.

Rob Mac, star and co-creator of It's Always Sunny in Philadelphia, has just revealed a very exciting update about the upcoming season 18.

Rob Mac and Charlie Day took to social media to make it official: filming on FXX's It's Always Sunny in Philadelphia Season ...

After 20 years of running Paddy’s Pub with the gang, Glenn Howerton has had his share of anxiety about being part of the longest-running live-action comedy series in the US. The actor, who plays toxic ...

Diehard fans of "It's Always Sunny in Philadelphia" have been singing about the "Dayman" — a master of karate and champion of the sun — since the show's musical episode aired almost 16 years ago. But ...

Fanatics is selling Philadelphia Phillies gear themed around the sitcom "It's Always Sunny in Philadelphia." The collection includes t-shirts and crewnecks featuring designs that combine Phillies and ...

Rob McElhenney as Ronald 'Mac' McDonald, Kaitlin Olson as Deandra 'Sweet Dee' Reynolds, Charlie Day as Charlie Kelly, Danny DeVito as Frank Reynolds, and Glenn Howerton as Dennis Reynolds on 'It's ...

As “It’s Always Sunny in Philadelphia” enters its 17th season after nearly two decades, its team of writers/stars (Charlie Day, Glenn Howerton and Rob Mac) has become a well-oiled machine. They’d have ...