Inside Kylie and Kendall Jenner’s Surprise Graduation Party

Kylie Jenner, class of 2015, and Kendall Jenner, class of 2014, were thrown a surprise high school graduation party last night. Here’s what happened.

Mom(ager) Kris organized their A-list bash, hosted by super-host (and executive producer of Keeping Up With the KardashiansRyan Seacrest.

just had the honor of hosting @kendalljenner @kyliejenner’s graduation. congrats proud of u

A photo posted by Ryan Seacrest (@ryanseacrest) on

Tons of family and friends showed up to celebrate with the girls, such as their sisters Khloé, Kim and Kourtney, model-bestie Gigi Hadid, Kylie’s boo Tyga, and Khloé’s rumored new beau James Harden.

The surprise:

Kylie showed off her graduation presents:

Khloé twerked:

A lot:

There were synchronized swimmers performing for some reason:

They danced some more:

Together…

A lot…

The sisters all posed for a photo together:

Graduating class of 2014 & 2015! 🎓 Congrats @kendalljenner & @kyliejenner for graduating high school! #SurpriseGraduationParty!   A photo posted by Kim Kardashian West (@kimkardashian) on

And Kim posted this sweet snap of “4 generations”: her with North West, Kris, and grandma MJ.

4 generations!!!! A photo posted by Kim Kardashian West (@kimkardashian) on

Clad in her cap and gown, Kylie flaunted her Laurel Springs High School diploma for the camera and we’re just so proud of the youngest of the Kardashian krew. Both Kylie and Kendall finished high school through homeschooling; she left Sierra Canyon High School in 2012.

Update — Jul. 24, 1:30 p.m. ET: Jenner seemingly took to Twitter to make some statements to the online trolls doubting that she’d graduated high school:

Check out the gallery above to see all the snaps from the night!