Among the A-list guests at the teen's party were Hailee Steinfeld, Tyga, Willow and Jaden Smith and Drake. Khloé Kardashian Odom, Kourtney Kardashian, Scott Disick and Kendall Jenner were also in attendance, as well as the teens' parents Bruce and Kris Jenner.
Kim Kardashian, however, could not attend the celebration because she had to stay home with baby North. An insider told E! News that the reality star made a cybernetic appearance later in the night via a "Happy Birthday" video message.
As for the entertainment, Kylie was surprised by a musical performance from Drake and Big Sean, which was allegedly organized by Kanye West.
The birthday girl reportedly wore a black leather Thierry Mugler skirt and black Nicholas tank top for the occasion and decided to forgo gifts, instead asking guests to bring an unwrapped toy for Children's Hospital Los Angeles.
Party goers, however, did receive party favors on their way out. The goodie bags included headphones, iPod speakers, Kardashian Beauty makeup and jewelry from Kylie and Kendall's PacSun and Metal Haven jewelry line.