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The Simpsons Season 33 Release Date, Guest Stars, And Plot - What We Know So Far

It's hard to imagine a world without "The Simpsons." America's most cromulent family has been on the air since 1989. The show's probably older than a lot of the people who watch it these days. And while there's no shortage of how the animated sitcom could eventually come to an end, that's not going to happen any time soon, especially after Disney's acquisition of Fox. 

"The Simpsons" will persevere in one form or another, and fortunately for fans of the Springfield Isotopes, the titular family will be back for a historic 33rd season. It's already become the longest-running scripted primetime TV series in the United States, and with the latest batch of episodes, it will forge ahead with its massive lead. The Simpson family has pretty much done everything under the sun, from launching Homer into outer space to hanging out with the likes of Elon Musk and Lady Gaga

There's plenty more absurdity on the way, so here's what we know so far about "The Simpsons" Season 33. 

What's the release date for The Simpsons Season 33?

A report from Deadline gives us our first real glimpse of what to expect going into the 33rd outing with the Simpson family. As a regular component of Fox's Animation Domination Sunday, "The Simpsons" has always come out in the fall, and 2021 will be no different. According to the article, the season will premiere on Sunday, September 26. That's the same day we'll see the rest of the network's animation line-up premiere new episodes, so you can also look forward to "Family Guy," "Bob's Burgers," and "The Great North."

While Season 33 already sounds impressive in its own right, it's far from the end of the line for Homer, Marge, Bart, Lisa, and Maggie. Fox has already picked up the series for Season 34, so there will be plenty more adventures on the way. With any luck, we'll get an episode of Bart moving from the 4th grade to the 5th. 

Which guest stars will we see in The Simpsons Season 33?

"The Simpsons" has certainly not had a shortage of guest stars over the years. The sitcom made it into the Guinness Book of World Records for the most guest stars to appear in a single show. Everyone from Sarah Michelle Gellar to Stephen Hawking has made the trip to Springfield, and Season 33 will be no different.

The Deadline report gives us some hints about who will be next, and Kristen Bell will lend her voice acting talents to the season premiere episode. She's no stranger to appearing in cartoon form, seeing how she's the voice of Anna in the "Frozen" movies. The premiere will be an all-musical episode, and Bell will do the singing parts for Marge. 

Other famous faces Deadline mentions include Rachel Bloom, Brian Cox, Cristin Miloti, and Timothy Olyphant. The latter three will appear at some point within a two-part special titled "A Serious Flanders," which "The Simpsons" team describes as "an epic love letter to ... the world of streaming television."

What plots will we see on The Simpsons Season 33?

One of the most intriguing tidbits we know about the upcoming season of "The Simpsons" so far is that it will open with a musical episode. The sitcom hasn't been afraid of including a few songs now and again with the likes of "Homer's Barbershop Quartet" and "Simpsoncalifragilisticexpiala(Annoyed Grunt)cious." However, executive producer Matt Selman describes the future Season 33 episode as the "most musical episode we've ever done," complete with "wall to wall music."

Another way the show plans on keeping things fresh with Season 33 is with its annual "Treehouse of Horror" episode. Traditionally, the haunted episode includes three separate segments, but there will be five later this year. Deadline describes another episode that will reportedly delve into the most significant tragedy Homer has ever experienced. He's certainly gone through plenty of those in his life, and it's interesting to imagine what it could be. Of course, this is "The Simpsons," so that tragedy could very well be Homer missing out on a 2-for-1 special at Krusty Burger.

Lastly, an episode will explore the love life of Moe Szyslak. Deadline suggests it could stick this time, and heaven knows Moe is a guy who could use a win in his life. This is merely a sampling of what we'll see in the coming months, so make sure to be close to your TV when "The Simpsons" Season 33 airs on September 26.