Inside Kim Kardashian & Kanye West’s daughter Chicago’s lavish joint birthday party with Kylie Jenner’s firstborn Stormi

KIM Kardashian went ALL-OUT for her daughter Chicago's fourth birthday on Saturday, throwing a shared backyard bash with Kylie Jenner and her daughter Stormi - also turning four.

The event featured massive balloon displays, many famous family sightings and even Chicago's dad, Kanye West.

No detail was spared in celebrating Chicago West - Kim, 41, and her ex-husband Kanye's daughter who turned four on Saturday.

The joint proceedings also celebrated Stormi Webster - Kylie's daughter with Travis Scott - who is also turning four next month.

Kylie had a luxe baby shower for her incoming second child just days ago, and posted a pregnant selfie amid the event.

The sprawling event included a pink bouncy castle, a massive balloon display that read "Stormi & Chicago," a modern ball pit and a face painting station that many of the KarJenner kids enjoyed.

Instagram Stories from the day showcased sister Khloe Kardashian hitting the face-painting station with her daughter True, while Kourtney Kardashian caressed a costumed character.

Meanwhile, in another corner of the bustling backyard bash, Kanye, 44, was spotted chatting with Kris Jenner.

KANYE DRIVEN MAD

Just hours earlier, Kanye slammed momager Kris while driving around Los Angeles in his car after he said he attempted - but seemingly failed - to get the address for the party.

He explained he reached out to multiple members of the Kardashian family about where they were celebrating his little girl turning four, resorting to a public shout-out before apparently making it to the event.

“Y’all, I’m just wishing my daughter a public happy birthday. I wasn’t allowed to know where her party was. It’s nothing legal. These are the kind of games being played.