It's Always Sunny in Philadelphia star Rob McElhenney has shared a first look at the show's upcoming crossover episode.
Rob McElhenney posted that fans can expect It's Always Sunny in Philadelphia and Abbott Elementary to have "a wholesome crossover." ...
I can't wait to get up in the morning and go to work because I know I'm going to have such a good time because I know everybody is firing on all cylinders,” the actress gushed.