And it was all caught on camera...
There's a few things you're hoping for when you see your favourite artist live. It could be for them to sing a brand new song, for them to come spot you in the crowd and realise you're the best friend they've always been waiting for (just us?). Something you're not really hoping for though is for them to smack you straight in the face with an inflatable ball.
Unfortunately, that happened to this very unlucky fan.
Jordan Hanks was one of the thousands watching her perform in Salt Lake City when Katy, who apparently could be in the premiere league, managed to be in the wrong place at the wrong time when Katy decided to kick one of her props into the crowd.
I didn't realize that she was kicking it right at my face until it was too late
Everyone around me asked me if I was okay and I was just laughing uncontrollably. My phone died shortly after, so once I got home and charged it I watched the video and it was hilarious.
Jordan said it was one of the best moments of her life and we can see why. Watch the full vid below: