Ariana Grande met Rihanna at the MTV Video Music Awards and posted the silly pic with her below. When we saw both of them in the same photo our minds were blown -- we didn't even know they were fans of each other!
The photo inspired us to do some digging and find more stars that we didn't realize have met. Click through to see what we found and let us know which ones shock you the most in the comments!
Ariana Grande and Rihanna
Ariana says Rihanna is the "sweetest, kindest and most beautiful [person]." Do you think they're besties now?