Katy Perry and Ellie Goulding are known for their huge pop songs like "Roar" and "Burn," but did you know that they were BFFs? In fact, they're so close that they even... pick each other's noses?! But don't worry — we think they were just fooling around, posing for the camera! (At least, we hope!)
What do you think of this silly pic! Tell us in the comments!