Duration: 22m

TV-MA 9.7 Comedy

It's Always Sunny in Philadelphia S4E13

Charlie stages a rock opera based on his song "Nightman" and recruits the gang to help him with the production.

Release Date: November 20, 2008 (USA)

Creator: Rob McElhenney

Cast: Charlie Day, Rob McElhenney, Glenn Howerton, Kaitlin Olson, Danny DeVito, Mary Elizabeth Ellis, David Hornsby, Lindsey Kraft, Brenden Walsh