SAN DIEGO -- The Associate Press -- By Derrik J. Lang -- The cast of "It's Always Sunny in Philadelphia" showed up to Comic-Con in appropriate attire: costumes.
Glenn Howerton, Rob McElhenney, Kaitlin Olson, Charlie Day and Danny DeVito appeared at a Sunday panel for their rude FX comedy wearing their outlandish ensembles from "The Nightman Cometh," their infamous musical-within-the-show they toured with in 2009. The crowd at the pop-culture convention roared when the gang stepped onto the stage.
"My pants don't fit anymore," complained McElhenney, who gained weight for season seven.
Before the panel at the San Diego Convention Center, the audience previewed the seventh season premiere, which is set to debut Sept. 15.
The episode, titled "Frank's Pretty Woman," introduced the dramatic 50-pound weight gain of McElhenney's Mac and followed the gang as they attempted to sway DeVito's Frank from marrying a crack-smoking hooker.
"Welcome to our last year at Comic-Con," McElhenney joked after the panel quickly devolved into raunchiness.
While answering questions from fans, the cast teased that the gang will participate in a high school reunion and a child pageant in the upcoming season.
The presentation ended with the gang leading a rousing rendition of "Dayman Fighter of the Nightman," one of the musical's songs, with more than 6,000 fans who gathered inside the convention's largest venue.
WATCH the cast lead a sing-along of "Day Man":
Derrik J. Lang can be reached at . http://www.twitter.com/derrikjlang
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