John Mayer -- Forgive Me Yet?
John Mayer found a way to make people look past that whole I'm part racist thing -- by plucking a cute 11-year-old from the audience to play guitar with him during a concert.
The kid, Austin, was reportedly holding up a sign asking to jam with John at his show Sunday night in Philly -- and Mayer spotted him and invited him onstage.
It was a win/win situation: Austin got a free guitar ... and John got some free, positive PR.