The ‘It’s Always Sunny in Philadelphia’ stars came up with the idea for their Four Walls Irish American Whiskey in a bar, of course

The stars of It’s Always Sunny in Philadelphia are bringing their humor and charm to a new venture: whiskey.

Glenn Howerton, Rob McElhenney, and Charlie Day launched an Irish American whiskey brand called Four Walls, and it is now available nationwide, PEOPLE can reveal exclusively.

After the trio released a limited whiskey in 2022 to raise money for the bartending community, they started to experiment with a new spirit.

In a hilarious YouTube video about the “origin story,” Day sips on a smooth Irish whiskey, while Howerton orders an American rye for “something a little more bold.” A tap on the back from McElhenney forces the two drinks to spill into one another, thus creating Four Walls Irish American Whiskey.

"We wanted to create a brand celebrating the four walls that have held our good times in and kept our troubles out,” Howerton says of the whiskey named after the four walls of a bar.

The 80-proof blend is hitting bars around the country soon, and is now available to order online at FourWallsWhiskey.com, ReserveBar, Flaviar, and Caskers for $36. The brand is also selling merchandise, with 100% of proceeds from select items benefiting Tales of the Cocktail Foundation.

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“After our higher-end releases, it was important for us to make a whiskey priced that all of our fans could try and that bartenders would want to use in everyday drinks,” Day said in a statement.

“The three of us have come up with some of our best ideas and had some of our most memorable nights out together in unassuming rooms where great bartenders made us feel like a million bucks when we probably didn’t have a hundred between us,” added McElhenney. “That is the power of a great bar - when your favorite people are there, your favorite bartender is working, and a great song is playing. Nothing can beat that good time, and that’s what Four Walls is all about.”

It’s Always Sunny in Philadelphia follows the daily shenanigans of Philadelphia bar owners Charlie Kelly (Day), Mac (McElhenney) and Dennis (Howerton). Kaitlin Olson — McElhenney’s real-life wife — plays Dennis’ sister Dee, who is the pub’s lead bartender. Danny DeVito also appears as Frank Reynolds, a.k.a. the legal father of Dennis and Dee.

The show premiered its 16th season in June.