Taraji P. Henson and Keegan-Michael Key Join ‘The Simpsons’ First-Ever Hourlong Episode

The special episode will debut in January 2017.Taraji P. Henson and Keegan-Michael Ke  Jon Kopaloff/FilmMagic; Michael Loccisano/Getty Images

The special episode will debut in January 2017.

In its 28th season on the air, The Simpsons is still drawing high-profile names.

In a special one-hour episode of the animated comedy set to debut in January 2017, Taraji P. Henson and Keegan-Michael Key will lend their talents.

Dana Walden, co-chairman and CEO of Fox Television Group, made the announcement on Monday at the Television Critics Association summer press tour. She also revealed that Amy Schumer will guest voice on all of Fox's animated series this year.

Titled "The Great Phatsby," the episode sees Mr. Burns (Harry Shearer) tries to relive his glory days and crosses paths with a mysterious music mogul. After being conned by him and reduced to bankruptcy, Mr. Burns seeks revenge on the music producer with the help of Homer, Bart, rapper Jazzy James (Keegan-Michael Key) and the mogul’s ex-wife, Praline (Henson).

Season 28 of the Fox staple kicks off on Sunday, Sept. 25 with the all-new episode "Monty Burns’ Fleeing Circus," in which Springfield is burned to the ground, and the Simpsons beg Mr. Burns (Shearer) to fund its rebuilding. Burns agrees but with one condition — he gets to put on a variety show at the Springfield Bowl.

The series’ record-setting 600th episode will air Sunday, Oct. 16 with a classic "Treehouse of Horror XXVII" episode. In it, Mr. Burns introduces a “Hunger Games”-style contest in which Springfield’s children must fight each other; and Lisa’s imaginary best friend becomes jealous of Lisa’s real best friends.

Jokes executive producer Al Jean: "I just pray it won’t be the last thing people see before a Trump inauguration."

Bryn Elise Sandberg