We knew that 'The Simpsons'' current season would pack a wallop with its existing crop of guest stars, as well as an upcoming installment produced from a decade-old Judd Apatow script, but this is getting ridiculous. Newly added to the season are Apatow himself, along with frequent collaborators Seth Rogen, Paul Rudd, Leslie Mann and even Channing Tatum, while 'Parks and Recreation' star Nick Offerman will appear later on!

Entertainment Weekly broke the news, more specifically that the Apatow crew will guest in January's "Steal This Episode," which will already feature a guest turn from 'Arrested Development' favorite Will Arnett. While Arnett is set to portray an FBI agent investigating Homer for movie piracy, Mann and Rudd will lend their voices to an Apatow-style movie Homer screens. Apatow, Rogen and Tatum will all cameo as themselves. Even further, Judas Priest frontman Rob Halford will appear to sing a parody of Priest classic “Breaking The Law.”

Elsewhere, 'Parks and Recreation' star Nick Offerman told the AV Club that he'd lent his voice to an upcoming episode, though no details were made available quite yet. Offerman joins the list of season 25 guest stars, including 'Daily Show' vet John Oliver, returning ‘Parks and Recreation‘ star Amy Poehler, ‘Harry Potter’ vet Daniel Radcliffe, ‘Mad Men‘ star Elisabeth Moss, comic legend Stan Lee, and ‘The Newsroom‘ creator and acclaimed writer Aaron Sorkin.

Just wait until season 26! Who else would you like to see pop up this season on 'The SImpsons'?

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