Run Katy run. Don't fall for this again. Please. For all of our sakes.

John Mayer dedicated a song to Katy Perry at a festival in Milwaulkee at the weekend, sending the girls in attendance into screaming messes (seriously, beware your hearing when mentions hers name) and generally gushing about how he seems to be completely mad about her.

Mayer was talking about all the long distance trouble and how hard relationships can be and ended up talking about all sorts of cute private things before saying 'She was more incredible than I ever thought. She was so patient as to continue to get to know me and love me. I want to dedicate this song to my Katy, who is my face to call home.' See now we get why this would make her swoon because even we are swooning a little bit but stop yourself Katy. Pull yourself away and don't fall for the charm. And Katy was apparently there in the audience that night and all.

Or do you know what Katy? Go for it. Worst case scenario you get to pull a Taylor Swift and get an album out of it. So knock yourself out.