Congratulations to Kylie and Kendall Jenner for being the most popular kids in every single school.

The non-twins had a surprise party to celebrate their graduations—Kylie finished high school this year and Kendall did last year...DUH. And a lot can be pieced together through a trail of Instagram and Snapchat crumbs sprinkled across the universe.

There were many famous people in attendance, including the party's host, Ryan Seacrest, and plenty of Kardashians.

Sources: Instagram | h/t Harper's Bazaar