PASADENA, Calif. (AP) -- The "Nightman" cometh, perhaps to a theater near you.

Danny DeVito and his co-stars on FX's "It's Always Sunny in Philadelphia" are taking their sitcom on the road, with a live-theater adaptation of last season's musical finale, dubbed "The Nightman Cometh."

Actor Rob McElhenney says the cast performed some of the songs at the Troubadour club in Los Angeles. McElhenney says Live Nation heard about the show and asked if they would like to go on tour.

Performances will be held next month in Boston, New York, Philadelphia, Seattle, San Francisco and Los Angeles.