Flipping through the pics from this event was SO FOREIGN TO ME. Like, more than usual. Fortunately, there were some familiar adults there to make me feel ever so slightly less unmoored. Next year maybe my nieces can translate this guest list for me.

[Photos: InstarImages.com, Chelsea Lauren/REX/Shutterstock, Michael Buckner/Variety/REX/Shutterstock, Chris Pizzello/Invision/AP/REX/Shutterstock]