12:38p.m. 22nd October 2007

Sophie Monk in an ad for PETA.

"If you are going to take your clothes off for something, it better be a good cause," says Sophie in her interview with PETA as she shed her clothes for the cause of promoting vegetarianism.

Well known beauty form the Gold Coast, Sophie Monk is PETA's latest star, featuring in a racy, naked ad campaign to persuade people to consider vegetarianism.

The campaign features a naked Sophie lying on a bed of red hot chilli peppers with the words "Spice Up Your Life. Go Vegetarian."

The campaign is one more in the series by People for the Ethical Treatment of Animals (PETA), which has featured other raunchy ads with scantily clad celebrities such as Alicia Silverstone and Dita Von Teese.

Sophie Monk, a former Bardot singer and now Hollywood actor arrived in Australia with here finace Benji Madden on October 8, although was not present at Good Charlotte's Indy show, according to online sources.

Of her nude campaign, she said: "There's no doubt in my mind that going vegetarian has made me feel better not only physically but also because I learned about the suffering of animals who are raised and killed for food."

As a longtime vegetarian, Sophie wants fans to know that giving up meat is one of the best things you can do to "spice up your life." Eating a diet of vegetarian foods will give you more energy, help you stay trim, and improve blood flow to all the organs in your body.

"I feel good knowing that I'm not contributing to that."