John Mayer Punks Photog ... So Fun!!!

3/2/2016 2:18 PM PST BY TMZ STAFF
EXCLUSIVE

John Mayer clowned our photog after playing an awesome set at an L.A. club. 

John was at Vibrato Tuesday night when our camera guy dropped the news he's getting hitched. He had the balls to ask John if he'd play at his wedding.

John then came up with a plan ... a special video for the nuptials. Our photog had no idea he was coming.