Harper's Bazaar has ruffled the brightly coloured feathers of Joss Stone.

The soul singer is fuming about some touching-up of her cover picture on in the April issue of the magazine - she claims HB took out her nose ring and changed the colour of her hair from pink to dark brown.

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Joss Stone: The soul singer is said to be upset that her nose ring was airbrushed out of the cover photo - but the magazine say all the feedback has been positive

"Some fashion magazine," Stone has been telling friends. "I'll never work with them again."

"All we can say is that we've had nothing but positive feedback from people," a spokesman for Harper's Bazaar tells me. "I can't confirm whether her nose ring and hair were digitally altered."

Presumably, Harper's editor, Lucy Yeomans, decided a nose ring was the wrong image to convey to her more conservative readers. Not even the slobbering interview with Stone conducted by John Walsh inside the magazine has managed to assuage her temper.

This is not the first time the glossy magazine habit of tampering with pictures has backfired.

In 2003, Kate Winslet complained that a photograph of her had been fiddled with to make her look taller and thinner on a GQ cover.

Then, last December, another row erupted after some people suspected some of Winslet's wrinkles had been smoothed over for a Vogue front cover - although the magazine denied the photograph had been touched up.