For the occasion, Kim stepped out in a bright red fitted dress with side laces as she was joined by family and friends at the Los Angeles venue.
Kim's sister Khloe, along with sisters Kendall Jenner and Kylie Jenner and mother Kris Jenner were also in attendance in equally eye-catching looks.
Khloe, 39, wore a white plunging neckline dress with matching shoes and bag, while Kendall stood out in a floor-length leopard print dress with long sleeves.
The 27-year-old model wasn't the only Jenner sister at the birthday party, as her younger sister Kylie, 26, was also photographed arriving at the event in a strapless black leather mini dress.
Meanwhile, close friend of the Kardashian family, Bieber, 26, entered the celebration in a brown outfit.
Other guests spotted arriving at the star-studded birthday bash included Hailey Bieber, Kimora Lee Simmons, Lauren Sanchez and Ivanka Trump.
Sanchez wore a sleek black dress, while Simmons, 48, brought along an adorable little dog to enjoy the birthday fun.
The model and entrepreneur looked delighted as she arrived at Kim's party, flashing a huge smile as she cuddled up to her furry pal.
While Simmons and Sanchez opted for black, Ivanka Trump opted for a sparkling white ensemble for the festive occasion. Her cropped white top was paired with a long skirt with a thigh-high slit. Another famous face at Kim's birthday was Sarah Foster.
In the early hours of Saturday morning, after the party, Chris paid tribute to his second eldest daughter in an emotional birthday post on Instagram.
"Happy birthday to my beautiful girl Kim," Kris, 67, wrote.
“I fell in love with you the moment we met and have been obsessed with you ever since. I feel so blessed to be your mom and I am so incredibly proud of you every day. You are the best daughter, mother, sister, aunt, cousin, best friend, confidante, travel partner, shopping buddy, stylist and therapist,” she added.
Kris also posted throwback photos of Kim from years past.
One of the photos shows Kim dressed as Minnie Mouse as a child, while another shows her in a Snow White costume.
In the latest photo, Kim poses with Kris and her late father, Robert Kardashian Sr. /BGNES
.jpeg)
