Both stars were spotted at the party by way of a mutual friend's Snapchat. Though they're both present, the former couple appeared to ignore each other entirely. Rihanna actively played with the kids, chaperoned the ball pit, and seemed to be having a great time overall. Drake, meanwhile, crouched in a corner and tried to zip up his jacket, which was already zipped all the way up.
I mean, who hasn't run into their ex at a birthday party for kids and then tried to disappear into their sweatsuit?