His Twitter mea culpa behind him, John Mayer asked a crowd of actual people on Wednesday to forgive him for those race-tinged, hyper-sexual and wholly inappropriate comments made in a newly published Playboy interview. The blues-rock singer teared up as he spoke to fans in Nashville about descending into a "wormhole of selfishness" with his "quest to be clever" in the media. He said he's "done" acting foolish and just wants to "play my guitar."