On Jimmy Kimmel, Katy Perry plays a superfan in a game of trivia about herself! Do you think you could beat someone in a game where you know all the answers?

I will leave you in suspense and not spoil it but Katy and this girl go toe to toe about each of their favorite subject...Katy Perry! This wasn’t just a segment for the show though. This was a high stakes game with prizes of personal possessions.

Superfan Emily could win an autographed pillow that Katy slept on the night before! If she looses she has to give up her huge scrapbook full of what looks like every Katy magazine cover ever.

Check out the video and see who wins!