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Blac Chyna, King Cairo

Snapchat

Blac Chyna is going big for her son's latest birthday party!

Just one day before King Cairo officially turns four, his mom decided to host a backyard celebration tied to all things Ferraris and Legos.

As seen on social media, guests were treated to a candy station from Dip'd N Drip'd, a giant inflatable car slide, Lego and pumpkin carving stations and a whole lot of red Ferraris.

"He's turning four tomorrow so you know I had to do it big," Chyna said on Snapchat during the party that lasted about five hours. "That's right."

She also showed off her son's bedroom that featured lots of gifts including a giant-sized toy vehicle covered in wrapping paper. "How cool is this you guys? King's Ferrari room is just finished," she explained. "I'm so excited."

Blac Chyna, Kris Jenner, Tokyo Toni

Snapchat

Back outside at the celebration, young guests including Amber Rose's son were able to drive in kid-friendly vehicles while the adults including Kris Jenner, Kourtney Kardashian, Scott Disick, Tokyo Toni and Laura Govan enjoyed tacos and lemonade.

"Tokyo presented Chyna with a moving speech and series of gifts, telling the crowd how proud she was of her 'star,'" a source shared with E! News. "There was a huge table full of gifts for King that he didn't open, but there were bags from Gucci, Louis Vuitton, Nordstroms and Janie and Jack."

One of those special presents was revealed on Snapchat when a family friend gifted the birthday boy a blinged-out necklace with real VVS diamonds. Not too shabby, right?

Blac Chyna, Kourtney Kardashian, Snapchat

Snapchat

The celebration comes just one day after Chyna joined Kourtney for a trip to the local pumpkin patch.

Everyone got into the Halloween spirit as they snapped photos, picked out the perfect pumpkin and kicked off the birthday weekend. 

As to what's planned for Sunday, we're just going to have to keep up. 

Watch the series premiere of Rob & Chyna Monday Sept. 12 at 9:30pm, only on E!