In its upcoming 28th season, "The Simpsons" will not only reach its landmark 600th episode but also hit the 60-minute mark.
Fox announced today that the animated series will air its first-ever hour-long episode in January, with guest stars Taraji P. Henson ("Empire") and Keegan-Michael Key.
Titled “The Great Phatsby," the episode follows Mr. Burns as he crosses paths with a "mysterious music mogul" named Jay G, who cons the nuclear-power tycoon out of his fortune. Seeking revenge, Burns turns to Homer, Bart, the mogul's ex-wife Praline (Henson) and rapper Jazzy James (Key) for help. According to Entertainment Weekly, Homer will serve as narrator for the episode, which takes place largely at Burns' summer mansion in the Springfield Hamptons.
Secondary plots involve Lisa being courted by the richest kid in town, Smithers beginning a dangerous journey, and Marge opening an obscure boutique.
The 28th season of the "The Simpsons" begins Sunday, Sept. 25, on Fox.