“John Mayer — what a curious case. As a pop personality, the guy’s abarrel of laughs. He’s a tabloid fixture who wears his celebrity with a wink: modeling Borat’s onesie swimsuit, starring in goofy YouTube videos, and generally disarming, with wit and self-deprecation, the millions inclined to hate a starlet-shagging guitar virtuoso. But then Mayer […]”