Victoria Beckham is set to pose nude.
The Spice Girl has signed a deal to become the face of designer Marc Jacobs' Spring/Summer 2008 collection and he has persuaded her to be photographed naked with the image to be used on a range of his skin cancer charity T-shirts.
A source told Britain's Daily Mirror newspaper: "Victoria loves Marc's work but she wasn't entirely comfortable with getting naked.
"Marc went all-out to persuade her. And when she heard about what a great cause it was she knew she just couldn't turn it down. The picture she and Marc have chosen is amazing - sexy but tasteful."
Victoria - who has three children, Brooklyn, eight, Romeo, five, and two-year-old Cruz - will follow in the footsteps of Julianne Moore, Dita Von Teese and Naomi Campbell, who all stripped for Jacobs' T-shirts in 2006.
They raised $60,000 for the charity and it is hoped Victoria's raunchy effort will match that figure.
Meanwhile, Victoria is said to be worried about her looks as the Spice Girls embark on their world tour.
She is reportedly terrified she looks the oldest out of all of the girls - Geri Halliwell, Mel B, Emma Bunton and Mel C - and is very insecure.
A source said: "Victoria has the biggest insecurities. She is worried about her skin, which is very bad again, and her hair which is falling out.
"She feels she has aged. When she saw the pictures from the press conference they did in the summer, she was upset because she thought she looked the oldest out of all of them."
The tour starts on Sunday in Vancouver, Canada.
The Original Victoria Beckham (pics)
Meanwhile Nicole Kidman (her kids don't call her mommy) wants David Beckham to star as a "hunky builder" in her new film 'Australia'.
'The Golden Compass' actress saw David play with his soccer team Los Angeles Galaxy in Australia recently, and was so taken with the muscular sportsman that she is desperate for him to appear alongside her in the romantic epic.
A source close to the actress said: "Nicole thinks David would be perfect to play a labourer in the film, and director Baz Luhrmann agrees.
"It would only be a small part and Nicole is hoping David might consider it."
However, David - who had cameo appearances in 'Goal' and 'Goal II: Living the Dream' - has previously insisted he has no plans to forge a career in Hollywood.
He said: "I never wanted to be an actor. It has never appealed to me. When I finish my soccer career what I want to do most is spend more time with my sons and Victoria and do some work for good causes."
'Australia' is a World War II musical extravaganza which tells the story of an English aristocrat, played by Nicole, who falls in love with a rugged Australian, played by Hugh Jackman.