Keith Urban covered Playgirl magazine in April 2001, a move he's talked openly about --with some embarrassment. But perhaps not as much as one may expect. "I didn't know Playgirl existed," the guitarist tells CMT. "I mean come on, what a crazy magazine. Playboy I can understand, but Playgirl …" 

No, he never shows off his whammy bar -- he insists he's not that open-minded -- but there is one shot of the singer fully nude with his instrument (musical) covering up his... well, you know. "Thank god I play guitar and not harmonica," Urban quipped.

Many years later, wife Nicole Kidman saw the spread and she liked it. Every once in awhile, he'll still sign a copy of the magazine in the autograph line. "I think the interview was really good," Urban says, repeating a line men have spoken about Playboy for years. As you'll find if you flip through a few more Remember Whens, Urban isn't the only country star to pose for the mag...