Speaking in an interview with Q magazine, the Sound of the Underground singer said she thought the naked form was ugly and recoiled at the idea of ever stripping off.
"The naked body is not beautiful, male or female," she commented.
"I would never get my kit off for Playboy magazine. It's so degrading. The suggestion of naked is nice, but not nude. I'd never do it for any price."
Nadine also took the opportunity to reiterate her current single status, saying that her erstwhile on-off boyfriend Jesse Metcalfe was not back in the picture.
Metcalfe, who shot to fame as the teenage gardener John on Desperate Housewives, has had a turbulent year, admitting to an alcohol problem in the spring.
