Los Angeles, California - Kim Kardashian pulled up to Khloé's son Tatum's birthday bash in true "Kim K" style!

On Sunday, the Kar-Jenners gathered to celebrate the 40-year-old Good American founder's now-two-year-old son at his dinosaur-themed bday party.

KoKo shared a look at the festivities via her Instagram Story which included: a three birthday cake, balloons styled as dinosaur eggs, plus a sign that read "Tatum Two-a-Saurus" next to a large dinosaur statue.

Yet, the SKIMs owner nearly stole the show when she arrived in a sparking gold gown.

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Khloé filmed Kim's grand entrance, saying behind the camera, "Oh wowee! The Golden Globe is here."

The AHS star, who stood next to her daughter Chicago, explained, "I'm moving, I either had one fancy or workout clothes," hilariously adding, "What do you want?"

But KoKo didn't let up by teasing her sister, "No you are the party, I love this."

Hours later, the mom of two sweetly honored Tatum with a touching post, in which she declared they were "destined to be together."

"I am so proud to be your mommy," Khloé added to the emotional caption.