“There have always been two John Mayers. There’s John the Musician, the neo-James Taylor of "Daughters" and "No Such Thing," and the blues-guitar omnivore who can back Jay-Z and cover "Sweet Child o’ Mine." Then there’s John the Dude, sloshing his TMI all over TMZ, blazing a trail of famous ex-girlfriends, big-upping his supposedly racist […]”