Kate Moss smokes on the runway: Fashion news!

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

Which male celeb has finally realised he is fashion-challenged? Which supermodel is sharing her sexy secrets?

Here's the lowdown on the latest fashion news!

Kate Moss lights up on runway

She may be 37, but she's still the child of controversy and undisputed queen of the catwalk.

Supermodel Kate Moss made a long-awaited return to the runway on March 9 for Louis Vuitton's showing at the finale of Paris Fashion Week -- and did it in style.

The Daily Mail reported that the blonde stunner ignored the ban on smoking and No Smoking Day to indulge her nicotine habit while strutting her stuff in black hotpants and lace-up boots.

Moss' stint on the ramp was the perfect ending to a fetish-themed collection conceptualised by head designer Marc Jacobs.

Other prominent models that featured in the show were Naomi Campbell, Carolyn Murphy and Amber Valetta, but the show-stealer -- and showstopper -- was undeniably the defiant Moss. Let's just hope her tiny transgression doesn't result in a legal notice!

It certainly looks like models are willing to go to great lengths -- and risks -- for their profession.

Gender-bending Australian model Andrej Pejic has said that he would consider a sex change and a boob job if he gets an offer from Victoria's Secret.

Pejic created a stir on the Paris fashion catwalk last week; the effeminate and softly spoken "femiman" model, who grew up in Broadmeadows in Melbourne's outer suburbs, was barely distinguishable from his female counterparts.

"If this is what it takes to have a career in this industry, then why not?" the Herald Sun quoted him as telling the London Daily Telegraph.

"You know, if I was offered a Victoria's Secret contract, well, you'd have to, wouldn't you?"

"I couldn't imagine doing it any other way," he added.

Just a word, Pejic -- with your blonde bombshell looks, it's really not necessary!

American supermodel and new mum Miranda Kerr has revealed the secrets behind her slim figure and radiant complexion.

Writing on her KoraOrganics blog, the Victoria's Secret model and mother of two-month old Flynn attributes her perfect figure to the Blood Type diet and a healthy dose of supplements to maximise her daily nutrition intake, reports the Sydney Morning Herald.

I am a blood type A and more often than not I eat specifically for my blood type," Kerr explains. "I also eat low GI, high alkaline foods, drink filtered water and eat mostly fresh produce and very little meat."

"I believe it is important to supplement our food to ensure our bodies have the nutrition required to remain healthy. This is even more important if you do not eat certified organic foods and certified organic fresh produce."

In addition to a vegetarian diet specific to her blood type, the 27-year-old is also a big consumer of various nutritional supplements.

Amongst her favourites are coconut oil, to which she attributes her blemish-free skin and glossy hair. Kerr says she ingests four tablespoons daily of the "healthy fat" diluted in green tea.

Kerr says she's chosen to publish her personal health and beauty recipe in response to public demand but it's "important to note that every body is different so what works for me might not work for you."

Another celeb who's given us dope on maintaining a great figure this week is Gwen Stefani.

In an interview with a magazine Stefani, who has one of the best bodies in the business, has revealed that sculpting her shape is "a daily struggle" and has put her toned physique down to a grueling fitness regime.

"I work out five days a week, I can't imagine not doing it," the Daily Mail quoted the 41-year-old singer as telling the UK version of Elle Magazine.

The mother-of-two also admits she does sometimes find it a struggle and added: "I'd like to have no rules and eat what I want, but I've learned over the years that I'm so disappointed when I can't wear the clothes I want to wear."

"And if I let myself down, appear on stage when I'm not looking my best, it's not fun for me. I just beat myself up about it," she added.

Harry Potter star Emma Watson is busting into the high-fashion world, by collaborating with fashion house Alberta Ferreti to create an eco-friendly collection.

Watson, 20, is working on the 'Pure Threads' collection meant for "sensitive people, who want to be supportive of these kind of issues," the New York Post quoted Ferretti as telling WWD.

The designer said she was attracted to Watson because of her "freshness...spontaneity and simplicity."

"She is intelligent, with a strong personality, a young, modern girl," she said of the actress.

This is not Watson's first foray into the world of fashion; she modelled for Burberry's Autumn/Winter campaign in 2009 and appeared in their 2010 Spring/Summer campaign alongside her brother, Alex.

The British actress also began working as a creative adviser for People Tree, a fair trade fashion brand, in February 2010. Part of the proceeds of her Ferretti line will benefit People Tree.

"I'm pleased that a luxury brand such as Alberta Ferretti has decided to create ecological clothes," Watson said in a statement about her latest venture.

"I believe this is a big step forward for all of the international fashion industry, but also an important step for an increased sensitivity to the problem of ecology," she added.

Kanye West finally seems to have realised that he knows squat about fashion -- the rapper is set to study fashion at the Central Saint Martins College in London.

West has applied to study for a master's degree in fashion but his application hasn't been accepted yet.

He flew into London on Wednesday to meet the head of the course, Professor Louise Wilson, who has guided the careers of many of Britain's top designers for the past 20 years.

She has a fearsome reputation in the industry and has even been labelled a "style dictator," reports the Sun.

"Kanye spends a lot of time with fashion students and often hooks up with Central's arty pupils when he is in London."

"The rapper already has work experience with Fendi and Louis Vuitton on his CV. Now that he has been interviewed, the school's board will have to decide whether to allow him to start the MA fashion course later this year."

The source added, "They are saying he has been turned down for a place because his portfolio wasn't up to standard."

Supermodel Heidi Klum has revealed the ultimate beauty secret for a woman who is getting older -- 'don't be too thin!'

The 37-year-old admitted that she loves to eat fatty chips and burgers.

The blonde, German-born mother-of-four also confessed that she rarely exercises, yet still manages not to pile on the pounds.

"Sometimes I'll have a Big Mac -- I love them, and I love chips." But she did at least admit that she enjoys lots of healthy salads too, the Daily Express quoted Klum as telling Easy Living magazine.

"The ultimate beauty secret for a woman getting older is, don't be too thin!" she said.

"It is always better to have a little meat on your bones. When you are just muscle you end up being gaunt in the face and that makes you look older by five or 10 years."

"I don't think of getting older as looking better or worse, it's just different. You change and that's okay. Life is about change," she added.

The Victoria's Secret model admitted: "People would be surprised at how little I exercise. I have a treadmill at home so I run a bit but the last time I ran was six weeks ago."

Megan Fox may want to take a page out of Klum's books. Her personal trainer has had to dismiss rumours that the actress is suffering from anorexia.

The beauty has come under attack in recent weeks for appearing gaunt and skeletal in a new ad for Armani.

However, Harley Pasternak has claimed that his client struggles to gain weight because of her 'fast metabolism' and insists she is not suffering from anorexia.

"She gets frustrated at times because she's like "I need to put on weight." So she actually weight-trains to keep on that lean muscle tissue," the Daily Mail quoted Pasternak as telling America's Hollywood Life.

"Believe it or not she has this really fast metabolism. So her training is all about body-toning and sculpting. With her, it's really about eating enough of the right things."

"People think, "Oh she must be anorexic," but she's far from that!"

After a month of embarrassments, Christina Aguilera is hoping to come up smelling sweet -- she is all set to launch a new perfume.

The pop star messed up the lyrics to the US National Anthem at the Super Bowl, stumbled onstage at the Grammy Awards and then was arrested for public intoxication -- all in the past four weeks -- but now she's getting back to business, reports the Daily Express.

The singer will launch her new fragrance Secret Potion later this year, according to Life & Style magazine.

This is one of many perfume launches for the pop star -- her last was Royal Desire, released in September 2010.

While Aguilera is all set to cash in on her perfume, actor George Clooney's fragrance deal has been dropped after his camp demanded a multiyear deal worth more than 30 million dollars.

Clooney's representatives had been in negotiations with Coty Inc about developing his own fragrance, but the high price has made them back off.

"George seemed to be not that keen, unless the deal really made it worth his while. But Coty pulled out, saying this figure made the deal impossible," the New York Post quoted a source as saying.

Coty has developed fragrances for celebrities, including Sarah Jessica Parker, Kate Moss, Kylie Minogue, Tim McGraw, Halle Berry, Jennifer Lopez, David and Victoria Beckham, Celine Dion and Faith Hill.

Clooney, 49, is currently filming Ides of March in Cincinnati.

Britney Spears has revealed that she may consider surgery to look better because she hates cutting back on calorie-filled foods.

When asked about her idea of hell by Out magazine, Spears replied: "Being on a diet."

Asked if she would consider surgery, she added: "When it's time to pull and tuck, I'm sure I will consider it."

The Toxic star is currently sporting an incredible figure, but her love of sweet treats -- such as croissants, cookies and candy -- is said to have left her in tears during a break in her 'Circus' world tour in 2009, when she put on 14 lbs in just one month, reports Adelaide Now.

A source said at the time: "She does not think about the calories in the food, just that she likes it. She loves greasy food and creamy sweets and hates fruit and vegetables."

The pressure to look great 24/7 is certainly hard on the rich and the famous. Pop star Lily Allen has revealed that she was suffering from an eating disorder when she paraded a slender new figure in 2009.

The Smile singer posed for a series of sexy photoshoots after losing weight, which she put down to a healthy diet and exercise regime.

But Allen, who has long struggled with body image issues, has confessed she was throwing up after meals to maintain her trim waistline.

"There was a point last summer (2009) where I'd say I had an eating disorder. I used to vomit after meals," the Daily Express quoted her as saying in a new TV show, Lily Allen: From Riches to Rags, recorded last year.

"It is not something I am proud of. But I tell you what, a lot of people used to come up to me and tell me how great I looked. And I was on the cover of every magazine with them saying, 'Lily is looking amazing -- look how much weight she has lost!' I thought I looked good.

"It was great to try on clothes and walk out of the shop feeling a million dollars. When you have been a victim of people saying the complete opposite, you want more of it."

"I wasn't happy, I really wasn't. I would like to be the skinniest, mini-est person in the world, but I know I can't do that without being unhappy. I like my food," she said.

And the star has no plans to stay in the public eye forever -- insisting she wants a quaint family life rather than a long lasting career like Madonna.

"My idea of hell would doing this in 25 years' time. I don't want to be like Madonna -- look at her, she's mental. No offence but that is not what drives me. I want to get married and have kids and make sandwiches cutting the crusts off," the singer added.

Salads, work-outs, calorie counting -- finally, a beauty tip we're all sure to like!

Gwyneth Paltrow has revealed that the secret to her staying slim and aglow is simple -- a pint of Guinness.

Paltrow, who has an amazing bikini body for a 38-year-old mum of two, said that Guinness is in fact a pre-awards ceremony ritual for her.

The actress and singer, who performed at The Oscars awards ceremony, confessed to Piers Morgan that she calmed her nerves 'the Irish way' with a pint of the black stuff, reports the Daily Mail.

Paltrow told the Mirror, "Guinness is my favourite beer. And there's two other things -- blush and a girdle."

But as she took to the beach in Barbados last month she didn't look in need of any help around her mid-section, as she showed off an impressively taut and toned shape.

Dressed in a skimpy blue bikini as she played with her children in the sea, she looked considerably younger.

Needless to say, she shimmered at the Oscars as well.