What are Darius Rucker, Luke Bryan, Jason Aldean and Charles Kelley up to?

ABC/Image Group LAThere's something going on with Darius Rucker, Luke Bryan, Jason Aldean and Charles Kelley -- and all we know for sure is that it seems to have a Western theme.

Both Darius and Charles shared the same photo on their socials, showing the foursome dressed in cowboy hats and Western attire, standing against a brick wall.

Darius' caption was simple: "Ladies and Gentleman....The Troublemakers!!" Charles kept it short as well: "Yesterday was no fun at all."

Here's what we know: the quartet of country's leading men recorded the Drivin N Cryin classic "Straight to Hell" together for Darius' When Was the Last Time album.

They'll also have plenty of chances to perform some version of the tune together in the coming months. Darius and Lady Antebellum head out together on the Summer Plays On tour in July, and Hootie & the Blowfish will reunite to play Jason's July 21 date at Braves Stadium in Atlanta.

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