'Planet's sexiest woman' revealed and more fashion news!

Welcome to the weekly fashion round-up, where we bring you the latest on supermodels, style, designers and everything in-between!

Which sizzling actress is the new face of a French fashion house? Which curvy singer wants her body to empower women?

Mila Kunis crowned 'Sexiest Woman Alive' by men's mag Esquire

Mila Kunis has been voted the 'Sexiest Woman Alive' by Esquire Magazine.

The 29-year-old girlfriend of Ashton Kutcher, who knocked Rihanna off the top spot to gain the coveted title, posed topless on the front cover of the November 2012 issue in just a pair of leather trousers.

The actress also posed in sexy lingerie for the photo spread inside the publication, which hits news stands on October 8, Radar Online reported.

Kunis has spoken out about being bullied for her unusual looks as a child in the past.

She claimed she was made fun of because of her big eyes, big lips and big ears.

Rihanna introduced her latest fragrance 'Nude' with a tweet, which is linked to a scantily clad photo of hers on Instagram, to her 26 million followers on Friday.

The 24-year-old singer is releasing the new perfume next year.

The tweet links to an Instagram image that features a scantily clad Rihanna, smiling and sporting platinum blond locks, the New York Daily News reported.

In the picture the Umbrella hitmaker has donned lace lingerie and covers the rest of her body with what appears to be lightly coloured gossamer.

"Here is my new add (sic) for a brand new fragrance #NUDE!!! Make sure you smell sexy, especially naked, this fall!!!" the publication quoted her as tweeting.

Jennifer Lawrence has replaced Mila Kunis as the new face of French fashion house Christian Dior's handbag collection.

The Hunger Games star will front the 2013 spring/summer advertising campaign for Miss Dior and says she is delighted to represent the brand.

"It's such a dream to represent an iconic brand that is synonymous with high fashion," the 22-year-old told Women's Wear Daily.

Kim Kardashian and Kanye West are planning to launch a joint fashion range, it has been revealed.

"Kanye and Kim have figured out that if they combine their names it could be big business," the Sun quoted a source as saying.

"They've both got massive fanbases who will buy their gear."

"It's also a sign that they're in the relationship for the long haul and that they think it's a romantic way to seal their relationship," the source said.

West launched himself as a fashion designer last year and Kardashian has had her own range of women's gear for some time now.

Christina Hendricks was left a little irritated when she was asked if she has inspired other women with her "full figure" in a recent interview.

The 37-year-old Mad Men star was offended when asked about her curvy shape, and got her publicist to ask the journalist to rephrase her question.

But fashion editor for Sydney's Sun-Herald newspaper Kate Waterhouse didn't seem to take the hint, asking the same question again of the flame-haired star.

"You have been an inspiration as a full-figured woman. What is the most inspiring story that you can remember where you've inspired someone?" the Daily Mail quoted Waterhouse as saying.

Seeming a little flustered at the question, Hendricks replied: "Um, I don't know...I'm sorry."

The video footage becomes particularly uncomfortable as Hendricks looks at her PR representative to save the day.

But again the reporter asks: "You've been known as an inspiration for women as being a full-figure..."

Hendricks interjects, telling the journalist: "I mean...you just said it again."

The fashion editor does manage to hold her own, however.

Pulling herself together, she apologies, insisting she misheard the PR's request to discontinue asking questions about her "full-figure".

According to E! Online, Hendricks later said off-camera, "I think calling me full-figured is just rude."

Salma Hayek has lauded Madonna's eagerness to flaunt what the pop diva has got, on and off-stage.

The Frida star fully supports the pop queen's right to bare.

"Do I envy Madonna's body? Yes. Do I thank God that she has it? Yes!" Us Magazine quoted her as telling Harper's Bazaar.

"If you're 50-something and you look like Madonna, and you put a lifetime's work in the way you look, then flash it to the world!" she said.

Adele, who reckons that she'd never have sold 32 million records worldwide if she was skinny, believes her huge success is all down to being curvy.

The 24-year-old plump singer asserted that she never suffered a setback with her voluptuous figure and doesn't prefer to look skinny as she is happy the way she is.

"I don't rely on my figure to sell records. "I don't want to be some skinny Minny with my ts out. I really don't want to do it," the Mirror quoted her as saying.

"No matter what you look like, I think the key is to be happy with yourself," she added.

Gwen Stefani has revealed that she is never dressed down, not even at home, as she wants to look good in front of her husband Gavin Rossdale.

The American singer, who is well known for her punk-rock image, makes sure that she never steps out without makeup.

"I'm still a teenager. Never went outside without makeup," Contactmusic quoted Stefani as telling Britain's Hello! Magazine.

"Seriously, I never look sloppy, not even at home. I also like it when Gavin says I look cute. Yes, I want him to think I'm hot!" she said.

The 43-year-old admitted that she is dressed up even while sitting at home and watching television, although in much less clothing as she is likely in bed.

"When I watch TV, it's almost always in bed. And there I'm very lightly dressed," the mother of two said.

Christina Aguilera hopes that her curvier figure will empower other women to embrace their own figures and sexuality.

The 31-year-old singer, who has drawn a huge amount of publicity for her current weight, admits that she is comfortable in her own skin and wishes her struggle will "empower" other women.

"I'm always in support of someone who is willing and comfortable in their own skin enough to embrace it," Contactmusic quoted her as telling the Sun newspaper.

"Embracing your body is so important, especially as a woman. In this business we are so analysed and judged," she said.

"It's wonderful to be in a position and have that side of myself that I can latch on to and empower other women. The older you get, the more important it is to embrace your body and your sexuality," she added.