Abbott Elementary” star and creator, Quinta Brunson, and “It’s Always Sunny in Philadelphia” star and co-creator. Rob McElhenney, both shared news they’re collaborating on a crossover episode on social media.

While plenty of new faces are arriving at the Philly elementary school, Abbott fans can rest assured that some traditions are back. After having a midseason start last year, the show is back to a 22-episode season, which means holiday episodes are coming.