Just call her Mrs. Popular!

Kendall Jenner turns 20-years-old today, and the supermodel celebrated turning another year older with a huge birthday bash at The Nice Guy in Hollywood. Literally every hot young star was there, from Justin Bieber to Nick Jonas to Gigi Hadid. Kenny's sisters Khloe, Kim, Kourtney, and Kylie were also in attendance, and we're wondering if it was at all awkward for Ky and her man Tyga that her ex Jaden Smith showed up?

Another interesting observation we had is that rumors have been swirling for months that Kendall and the hottest Jo Bro are dating, and it certainly seemed as if she was sexxing it up for somebody!

We're happy to see Khloe slowly resuming normal life in the wake of Lamar Odom's health crisis. Now that the NBA star is on the road to recovery, the reality star is taking a step back to tend to her personal life. "Since Lamar stabilized and moved from the ICU to the inpatient rehabilitation unit, Khloé has visited less. After being by his side 24/7 during his stay in the ICU, it's not strange that she is visiting less. Khloé has behaved like most people do," a source dished to People.

Kendall accomplished a lot in the last year of her teens, and we bet landing a spot in the Victoria's Secret fashion show was the cherry on top! E! News reports that the cat walker has been cast to model the "lingerie line's sexiest nightwear" on the big night, and nobody is probably happier about this than momager Kris Jenner!

Oh to be a fly on the wall of this party!