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Rocker John Mayer insists his reputation as a bad boy and cad is undeserved - because he has never treated a girlfriend badly.

The singer/songwriter, who has dated a string of beauties including Jennifer Aniston, Jessica Simpson and Jennifer Love Hewitt, fears many people think he's terrible boyfriend material - thanks mainly to the media's take on his love life.

But he claims he's not the callous Lothario he's often portrayed as.

Mayer tells Playboy magazine, "I consider myself a good guy, with the best of intentions. Anyone who has been in a relationship with me would stand by the fact that I've never been callous. I've never been a bad boy.

"I may have taken someone through the wringer psychologically, but I've never been sinister."

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