Taylor Swift's "Dear John" Upset John Mayer

John Mayer and Taylor Swift

Photo Credit: Theo Wargo/Getty Images

Taylor Swift's song "Dear John" made John Mayer feel "terrible" and "really humiliated," he told Rolling Stone in an interview published Wednesday (June 6) on the magazine's website.

Mayer said Swift didn't warn him about the song. She has never publicly acknowledged that the song was written about him. She included it on her 2010 album, Speak Now.

"It made me feel terrible," Mayer said. "Because I didn't deserve it. I'm pretty good at taking accountability now, and I never did anything to deserve that. It was a really lousy thing for her to do."

He also told the publication, "I never got an e-mail. I never got a phone call. I was really caught off-guard, and it 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?"

Although he spoke specifically about "Dear John" in the story, Mayer also addressed Swift's approach to songwriting.

"I will say as a songwriter that I think it's kind of cheap songwriting," he said. "I know she's the biggest thing in the world, and I'm not trying to sink anybody's ship, but I think it's abusing your talent to rub your hands together and go, 'Wait till he gets a load of this!' That's bull---."

Taylor Swift has not commented on the matter.