She's doing it up!

Kylie Jenner a.k.a. the youngest member of the Kardashian clan kicked off her 17th year the only way she knew how: by partying with her famous friends!

In the video, Kylie is clearly elated with her oddly shaped cake as she danced on a couch at rapper Tyga's house. If you listen closely, you can almost hear someone suggesting she should take a shot. A little early there!

Justin Bieber, Game and Chris Brown were just a few of the celebs in attendance for the birthday soiree that was well deserved.

After having a huge year that included releasing her first sci-fi novel with sister Kendall, designing a women's clothing line for Pac Sun and launching a modeling career, Kylie can let her hair down!