Glenn Howerton, Rob McElhenney & extras on It's Always Sunny in Philadelphia (2019)

Last week's new episode of the long-running comedy It's Always Sunny in Philadelphia featured some gratuitous skin thanks to a plot revolving around global warming. In the middle of a heatwave, the gang faces increasing temperatures. A bar full of young people looking to take advantage of the air conditioning puts a strain on the bar's resources. Dennis & Mac ultimately end up topless and sweaty, while the customers are stripped down to their underwear. Glenn Howerton & Rob McElhenney both showed off their chests for multiple scenes, along with several undewear-clad male extras. Interestingly, one of the partying extras also appeared as an extra on today's Will & Grace post. Can you spot him?