Guests at the star-studded event included the designer's Spice Girls bandmates Emma Bunton, Mel C and Geri Halliwell, her husband David Beckham, Coldplay's frontman Chris Martin and director Guy Ritchie.
Beckham and Sporty Spice, Mel C, shared photos of the event on social media.
So much fun with my family last night! I love u Louise and Christian x Victoria pic.twitter.com/gxTNLbZgRU— Victoria Beckham (@victoriabeckham) April 28, 2014
Beckam's celebration comes ten days after her actual birthday, April 17, which she spent hiking the Grand Canyon with her family.