The soiree, thrown by momager Kris Jenner at her home, featured an impressive guest list.
Plenty of other famous faces, however, were on hand to wish the bride-to-be well...
Serena also gave the bride-to-be a social media shout-out, saying "@KimKardashian you looked radiant today.love u enjoy this moment. Always amazing seeing you and @KhloeKardashian and @kourtneykardsh."
Mel B had double shower duties on Saturday, attending Kim's bridal shower and Denise Richards' baby shower later that day.
We're sure no one was more tired than the woman of the hour herself, who hopped on a private jet to Las Vegas with her mom, sisters and friends to continue partying.
She opened sexy lingerie gifts with her girls in her private suite at the Palazzo before noshing on chicken salad, calamari and pizza poolside. After lunch, the girls opted for shopping and massages instead of more partying, but Kris was apparently ready for round two.
Meanwhile, her New Jersey Nets beau spent Sunday at Tao Beach with Jordan Farmar and his sister Kaela. The group drank cocktails and even tossed the groom in the pool before the revelry finally died down.
Guess we know who the bigger partyer is in this twosome!