There are a couple of tabloids that are reporting that Katy Perry and John Mayer hooked up. It is definitely not dating because they got together way back in the middle of June. So, it was either a one night thing which is quite likely knowing the history of John Mayer or Katy would not do what John Mayer wanted which is also very likely because John does like to get his freak on. They would make an interesting combination. They both like to be in the limelight so much though, I fear the world would become nothing but John and Katy 24/7. There is nothing they would not do to show the world they were a couple of they were. The pair were supposed to have been kissing and canoodling.