Dubbing it "Stormiworld" - a play on Scott's album titled Astroworld - guests were treated to a colourful party complete with a carnival ride, a butterfly rainbow forest with fairy performers, and a blue room adorned with giant Stormi portraits and fluffy cloud murals. A "Stormi's Shop" was filled clothing and souvenirs bearing her name.
The red velvet purse was a gift from rapper and family friend, DJ Khaled, who was one of the A-list guests to join the toddler at her theme park-inspired extravaganza.
Fries were served in pouches that resembled the Louis Vuitton logo - with Stormi's initials "SW" instead of "LV" - and guests gathered for a live performance of "Baby Shark" that got everyone dancing.
"I had to go all out for my baby", Kylie captioned a pic with her daughter, adding the hashtag #StormiWorld. "Happy 1st birthday Stormi!". To caption a clip of the back of Stormi's head as she stared at the screen, the Kylie Cosmetics founder wrote: "First time watching Barney and she loves it".
There were also cookies with Stormi's face, which is cute as heck.
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Once inside, she ditched the shell and showed off a low-cut gown emblazoned with bricks and a back that read, "BUILD THE WALL". It's not about race. "It's an opportunity to show the world who I am on the red carpet , which to me is the same as a stage.
"Beyond proud of my fantastic daughter for all of her accomplishments, but especially proud of what an unbelievable mom she is to her little girl!"
Caityn Jenner posed for pictures next to Sophia Hutchins and lauded her daughter as a mother.
The tiny tot was the star of the show at her first birthday last night, and it was an event better than every birthday party we have ever had combined.
"My love grows for you a thousand miles a minute", Kylie continued.
As always, people following the party on social media gave their thoughts on Jenner and Scott's over-the-top party for their little girl.