John Mayer Uses His Head ... Not the Racist One

John Mayer didn't say one word about his racist penis this weekend -- in fact, the singer didn't say one word about anything.

After all of last week's drama -- and his subsequent teary-eyed explanation -- Mayer kept his head down and his mouth shut as he waded through a sea of paparazzi on his way out of his hotel in Canada.

As for the penis -- no comment from Lil' David Duke either.