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Kylie Jenner's 21st Birthday Was Such a Big Deal That Her Party Was Attended by Both Kris Jenner and Caitlyn Jenner

The Keeping Up with the Kardashians new mom celebrated with a celeb-packed party, complete with a ball pit.

By Jenny Berg Aug 10, 2018, 11:54 AM ET

Watch Kylie Jenner Evolve From Cute Little Sis to Fierce Beauty Mogul

She's finally old enough to drink! Oh, and, to become a self-made billionaire. (Milestones for the KarJenners are a little different than milestones for the rest of us ... what can we say?) Since she's no ordinary 21-year-old, Kylie Jenner hardly had the typical 21st birthday bash when her big day came around on August 9. Here's what went down:

The Kylie Cosmetics mogul took over the swanky West Hollywood restaurant Delilah for her ultra-special event. Rumor has it that the party — which seemed to have a pretty-in-pink dress code — came with a celebrity-packed guest list, over-the-top party favors, a unique Barbie cake, a color-coded drink system, and an on-site ball pit. It was such a big event that both of Kylie's parents, Kris Jenner and Caitlyn Jenner, came out to celebrate.

bday dinner ... look 1 ð
A post shared by Kylie (@kyliejenner) on Aug 9, 2018 at 9:50pm PDT

t-minus two hours
A post shared by Kylie (@kyliejenner) on Aug 9, 2018 at 9:50pm PDT

twenty one
A post shared by Kylie (@kyliejenner) on Aug 9, 2018 at 11:05pm PDT

A post shared by Kylie (@kyliejenner) on Aug 9, 2018 at 11:06pm PDT

BIRTHDAY BEHAVIOR! WERE ALL TURNING 21!!
A post shared by Kylie (@kyliejenner) on Aug 9, 2018 at 10:48pm PDT

Dave Chapelle and Kris Jenner celebrated the birthday girl. Photo: @kimkardashian/Instagram Stories

Caitlyn Jenner was at the party to celebrate her youngest daughter as well. Photo: @kimkardashian/Instagram Stories

We're not sure if baby Stormi made it out to the bash, but we're guessing she didn't quite have the proper I.D. Those who did make it out included comedian Dave Chappelle, who did a set as part of the evening's entertainment. Nicki Minaj and model Winnie Harlow also partied with Kylie. And the Kardashian clan wasn't only there in person: they were also painted onto the wall in a custom mural that featured the reality stars' faces.

Nicki Minaj and Kim Kardashian snap a selfie. Photo: @kimkardashian/Instagram Stories

Winnie Harlow and Kim Kardashian pose for the camera. Photo: @kimkardashian/Instagram Stories

Kylie Jenner and Travis Scott are caught in an adorable moment. Photo: @kimkardashian/Instagram Stories

Check out the family mural! Photo: @jordynwoods/Instagram Stories

The pinkness wasn't only relegated to the guests' attire, either. Custom pink tinsel covered the outside of the venue for the evening; sparkling pink balls formed a canopy over the dance floor, and pink confetti rained down on guests as they danced to a live performance from Kylie's beau Travis Scott. But, that's not all: even the ball pit got the memo and featured pink balls and heart-shaped balloons. (Kameron Westcott would have been in heaven!)