Rob McElhenney on It's Always Sunny in Philadelphia (2018)

Rob McElhenney showed off his ripped body in the thirteenth season premiere of It's Always Sunny in Philadelphia and he did it again for this week's season finale. The tenth episode of Season 13 focused on Rob's character, Mac, dealing with his homosexuality and coming to terms with it, while the gang tries to convince him to put his hot body to good use and dance on their Gay Pride parade float to make some cash. Mac refused and Frank set out to help him unleash his inner gay. The shenanigans ultimately led to an emotional moment as Mac came out to his father in prison, with a choreographed dance number, finally letting his feelings out in his own way. Rob was shirtless for the dance that ended the episode.