OUCH!: 8 Celebrities Who Publicly Humiliated Their Exes After They Broke Up

Taylor Swift John Mayer
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Taylor Swift humiliated John Mayer when she released the song "Dear John."

"[Her song] really humiliated me at a time when I'd already been dressed down. I mean, how would you feel if, at the lowest you've ever been, someone kicked you even lower?" he has said. "It was a really lousy thing to do."