John Mayer, 44, Spotted Hugging & Grabbing Drinks With ‘Mad Men’ Star Kiernan Shipka, 22

John Mayer Stops Los Angeles Concert to Help Distressed Fan

John Mayer Says Bob Saget Was ‘One of My Favorite People in the Galaxy’

John Mayer's Special L.A. Show Attracts Stars Like Vanessa Hudgens & Heidi Klum (Photos)