It's Always Sunny in Philadelphia Season 16 Trailer HD - The gang is back when It's Always Sunny in Philadelphia Season 16 premieres June 7th on FX. - Starring: Charlie Day, Glenn Howerton, Rob McElhenney, Kaitlin Olson, Danny DeVito<br /><br />Watch It's Always Sunny in Philadelphia Wednesdays at 10:00pm on FXX
