In her post, the 41-year-old celebrity wished her beloved Psalm a happy third birthday. Your big laugh and cuddles are the greatest, and your grin brightens the entire space! Forever, my baby boy! I adore you enormously!

Kim appeared with her four kids: four-year-old Chicago, eight-year-old North, and six-year-old sons Psalm and Saint.

The celebrity has children with her ex-husband Kanye West, who was allegedly in Japan on Thursday when his son’s celebration was held, along with Instagram model Chaney Jones.

It looks like the rapper and Chaney are still traveling abroad.

Kim, clutching Hulk party supplies, snapped a monochrome photo with the birthday child.

The celebrity, whose hair was bleached platinum blonde for the Met Gala last week, donned a black turtleneck bodysuit with loose pants and a sleeveless design.

Psalm’s older brother Saint and he both had T-shirts with the Hulk’s image on them, with Chicago sporting a green number.

Kim and her children posed in front of a green balloon that had the Hulk’s well-known hands and his catchphrase, “Smash,” projected onto the walls.

The toddler’s green cake featured the Hulk fist with the words “3 Psalm” written on it.

With Saint’s attention fixed on the enticing-looking cake, Kim tenderly planted a kiss on her son.