SpongeBob's Big Birthday Blowout is a 2019 made-for-television live-action/animated comedy special based on the American animated television series SpongeBob SquarePants. It was written by Kaz and Mr. Lawrence, and was directed by Jonas Morganstein. The special, produced as part of the show's twelfth season, originally aired on Nickelodeon in the United States on July 12, 2019, celebrating the series' twentieth anniversary. The television series follows the adventures of SpongeBob SquarePants (voiced by Tom Kenny) in the underwater city of Bikini Bottom. In the special, the citizens of Bikini Bottom plan a surprise birthday party for SpongeBob, while he and Patrick Star (voiced by Bill Fagerbakke) tour the surface world and come across their real-life selves. The live-action portions of the special also feature several guest stars including Kel Mitchell, Jack Griffo, Daniella Perkins, and David Hasselhoff, the latter of whom starred as himself in The SpongeBob SquarePants Movie. The special is dedicated to the memory of SpongeBob creator Stephen Hillenburg, who died from complications of ALS in 2018. Upon release, it received generally positive reviews. Plot In Encino, California, Patchy the Pirate attempts to get to Bikini Bottom to give SpongeBob SquarePants his birthday present. Down in Bikini Bottom, Sandy Cheeks gathers Patrick Star, Old Man Walker, Mr. Krabs, Mrs. Puff, Bubble Bass, and Plankton to orchestrate a plan to get SpongeBob's house keys and decorate his house, starting with Patrick. Patrick sends SpongeBob to a bus going to the surface, with help landing by the French Narrator. At SpongeBob's house, an argument occurs about the Birthday theme. Sandy gives everyone (now joined by Squidward Tentacles) a decision to divide the themes. The party goes through full swing, but chaos ensues and the house starts falling apart. Arriving at the Trusty Slab on the surface, SpongeBob notices that a customer, the cashier Manward, the owner Mr. Slabs and the Fry cook JimBob appear as respective human counterparts to Patrick, Squidward, Mr. Krabs and himself. A lady mistakes the tour bus for an aquarium, and puts it on a shelf in a fish store. Patrick pushes the tour bus to the other side, escaping with the other fish. In Bikini Bottom, SpongeBob discovers his destroyed house and thanks everyone for celebrating his birthday, when a Box falls out of the sky. The Box is revealed to be Patchy's head, congratulating SpongeBob, leading SpongeBob's friends to sing a birthday song reminiscent of