Mrs Tom Cruise strips 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 A-lister is rumoured to have gotten breast implants? Which supermodel is showing off her hot bod in a sizzling new campaign?

Here's the lowdown on the latest fashion news!

Katie Holmes dares to bare in jewellery ad

Katie Holmes has gone topless in the latest ad campaign for jewellery brand H Stern.

In the sexy new commercial, Holmes looks seductively into the camera as her long brown hair blows out around her and showcases a pretty necklace, the Daily Mail reported.

In another shot, the mother-of-one is seen writhing around in the sand, advertising a pretty chain bracelet.

Katie, who is married to Mission: Impossible star Tom Cruise, is also seen displaying her stunning figure in a sexy black one-piece, going for the wet look with her hair slicked back to show off her model-like bone structure.

While the advertisements, the 33-year-old's third campaign for H Stern, are currently only running in Israel, they are set to hit America this autumn.

Rumour has it that Cameron Diaz has undergone a breast enlargement surgery after her latest outing in a tiny bikini.

The Charlie's Angels star was spotted on the beach in Hawaii over the holidays looking rather shapely, which sparked speculation that she has gone under the knife.

According to the National Enquirer, the 39-year-old actress has reportedly had implants to boost her chest by a cup size.

"I believe she has had a breast augmentation using relatively small silicone implants," the Daily Mail quoted plastic surgeon Dr Anthony Youn, who has not treated the star, as telling the publication.

"Since swelling can take severely weeks to settle down, I suspect she had the surgery at least two to three weeks ago," he said.

Cameron has previously said she would prefer a more curvy figure in 2009.

"I'd love to be more voluptuous. It's just not my body type," Diaz told Marie Claire.

The Bad Teacher star, who had her nose fixed in 2006 after breaking it four times, said in 2010 that she would rule out more surgery.

"Yeah, well, hey. I'm not doing anything right now," she told British Vogue.

"But we'll see. So far, so good. But I'll never say never to anything," she said.

Kate Beckinsale has revealed that her mother still disapproves when she is photographed flashing flesh.

The 38-year-old beauty, who stars in the forthcoming Underworld: Awakening, is still bemused when shots of her on the sunbed make the news.

Recalling a recent photograph showing her and husband Len Wiseman in Mexico, she said that mum Judy Loe was quick to alert her to the fact.

"I got a call from my mother saying, 'Don't you think you should be in a towel?'" the Daily Express quoted her as saying.

"Thank goodness we didn't get all European and take everything off," she added.

Roberto Cavalli's latest collection has hit the press with its spring 2012 ad campaign and features Naomi Campbell looking hotter than ever.

The British supermodel, now 41, shows off her fabulously toned bod in animal print lingerie, with her long tresses alluringly floating in a breeze about her shoulders.

In another photograph, Naomi dons brightly-coloured trousers and a matching jacket left open to expose her black bra, the Daily Mail reports.

The Cavalli campaign also features Campbell's fellow models Kristen McMenamy, 47, Brit Karen Elson, 32, and Dutch newcomer Daphne Groeneveld, 17.

Gwyneth Paltrow's New Year diet kit has been panned by doctors and fans alike, with some even calling it a '300-pound laxative'.

Users of the diet said that the 'Clean Kit', a three-week detox programme of fibre, pills and oils, has them running to the loo a number of times.

Doctors and dieticians have branded it a 'useless waste of time and money' that could even make people fatter.

Paltrow revealed on her health website Goop that the regime made her "lose pounds and kickstart a healthier and more energetic New Year", the Daily Star reported.

Created by her Uruguayan diet guru Dr Alejandro Junger, it replaces ordinary meals with shakes and tablets.

However, furious users of the diet have slammed it on various web forums. One blogger on US site D-listed renamed Gwyneth's Goop website Poop.

"The cleanse is all about fing your asshole raw and shtting out your insides while completely screwing over your checking account," one of the users said.

According to Hollywood Life, one doctor said that the low calorie detox could make the body retain fat as a natural reaction to fasting.

"The whole idea of detox is nonsense...The body is a well-developed system that has its own built-in mechanisms to detoxify and remove waste," Dr Frankie Phillips, from the British Dietetic Association was quoted as saying.

Cindy Crawford was recently spotted at a Los Angeles Lakers game looking a little different in the face.

According to a board certified dermatologist, it's because the former supermodel appears to have had injections.

"Her cheeks are a lot fuller. She definitely had something injected into her cheeks. Most probably Radiesse or the other option would be Sculptra," RadarOnline.com quoted Dr Ben Behnam as saying.

"They're both designed to give people higher cheekbones. It's very popular in the industry and her cheeks are visibly higher and fuller," he said.

Dr. Behnam further stated that it looks like the 45-year-old beauty had some Botox.

"Her eyebrows are also higher than before. She probably used Botox to raise the brow."

"Something else that's different is she doesn't have the definition in her jaw area, which could just be because she's getting older," he added.

He further explains that injections like Sculptra are typically administered over a period of months and can last years, so it's hard to tell when the mother of two had the procedure done.

Cindy has her own skin care line called Meaningful Beauty, which boasts of her beauty as 'Cindy's anti-aging secret'.

Actress Mila Kunis has become the latest celebrity to join the Christian Dior family.

Her first ads for the Miss Dior handbag -- shot in New York by photographer Mikael Jansson -- will debut internationally in Asian and European editions of Elle, Vogue and Madame Figaro on January 15.

"I am absolutely thrilled to be working with Dior," People Magazine quoted the Black Swan star as saying in a statement.

"The brand is iconic in so many ways. It defines fashion, elegance and sophistication," she stated

Kunis joins Lady Dior handbags' current face, Marion Cotillard (who will remain in her role), plus Black Swan co-star Natalie Portman, the spokesmodel for Miss Dior Cherie perfume.

Charlize Theron also models for Dior beauty and J'adore Dior fragrance, and Jude Law, Sophie Marceau and Sharon Stone have ties to the brand as well.

Liv Tyler has revealed that her style has been largely influenced by her mother and grandmother and they often give her tips to accentuate her best assets.

The Lord of the Rings actress relies on both women for advice and her grandmother tells her how to look good, especially during important TV appearances.

"My mom Bebe Buell and grandmother taught me everything I know; I learned so much from them. But they are so different -- my grandmother does yoga and carries herself so beautifully. She teaches etiquette and is very polished and sophisticated. Then my mother, her daughter, was a beautiful model and a punk rocker and a totally different person. My mum is incredibly beautiful and has very eclectic taste and is quite playful, kitsch even," Contactmusic quoted her as telling Britain's OK! Magazine.

"I remember the first time I went on a TV chat show, I think it was David Letterman's, my grandmother told me to remember to cross my legs away from the camera."

"She demonstrated it and explained how it would make my legs look longer and was more flattering. There's so many more tips but it's the little things like that my mum and grandma have taught me," she added.

Christina Aguilera has said that she does not let criticism regarding her weight affect her, as she is very "comfortable in her own skin."

She has been criticised by gossips in recent years for showing off a curvier figure, but Aguilera has chosen to ignore the massive media scrutiny and silence her critics.

"I've been in this (business) for a long time. I came out on the scene when I was 17 years old. You can never be too much of anything. You can never be too perfect, too thin, too curvy, voluptuous, this, that. I've been on all sides of the spectrum as far as any female in this business," Us Magazine quoted her as saying at a press conference for US singing show The Voice on Friday.

Despite the heat, the 31-year-old is "very confident" of her body.

"I think my video works over the years have spoken to that...As you know, Dirty and so on, and Lady Marmalade. I've been no stranger to being very comfortable in my own skin to take those risks, to take those chances," she said.

The The Voice coach, who is mom to nearly 3-year-old Max, feels that women are "definitely under a microscope and under massive scrutiny."

"As long as I'm happy in my own skin, that's all I need."

"I'm happy with where I'm at. I have a boyfriend that loves my body. I love my body. My son is healthy and happy. That's all that matters," she added.

Kim Kardashian has revealed a new photo of herself, inspired by her idol Elizabeth Taylor, to promote her latest perfume.

The 31-year-old reality TV star unveiled the photo on her Twitter page.

With her red lips and cascading curls she told her fans that she is 'channeling ElizabethTay ' in her True Reflection ad campaign.

Leaning against a gold-coloured frame, the smokey-eyed star wears a silver, sleeveless dress with a plunging neckline.

It is the second photo that she has posted online from the upcoming promotion.

"Another pic from my True Reflection fragrance ad campaign...ultra glam!" the Daily Mail quoted her as tweeting.

"LOVE red lips! Channeling ElizabethTay," she said.

Jennifer Aniston has regained the title of Hollywood's Most Desired Body at the age of 42.

Three years ago, she was crowned the most desired body in the annual Hollywood's Hottest Looks survey, compiled by Beverly Hills plastic surgeons Richard W Fleming, MD and Toby G Mayer, MD.

In 2010 singer Stacy "Fergie" Ferguson grabbed the top spot.

Last year Aniston came in a close second to supermodel Gisele Bundchen.

But in 2012, it's all about the Friends star again, who topped the 15th annual Most Desired Female Body category at the age of 42, leaving 20-something stars Bar Rafaeli and Shakira in her dust.

While the relatively older Aniston may have the most coveted total package, younger stars are filling in more and more slots on the docs' body parts lists.

"The biggest shift over the past year is that the younger celebrity group is emerging -- people like Katy Perry," Fox News quoted Dr Fleming as saying.

"The celebrity faces are what people refer to as an example because they like the way they look and they refer to these celebrities when they are considering plastic surgery."

"Another interesting change this year is that the female body choice is smaller in proportion. People don't want an unbalanced body," he added.

The Duchess of Cambridge's style has been hailed 'amazing' by a top Hollywood stylist.

The 29-year-old's keenness to high street brands over high society fashion has won her a number of fans, including Nikki Pennie, who has styled stars including Kendra Wilkinson, Shenae Grimes, Cat Deeley and Madonna.

"She's amazing; she's wonderful," Contactmusic quoted her as writing on fashionista.com.

She also praised Catherine's sister, Pippa, saying, "Both the Middletons, they're in the same age group as me and it was very much our culture growing up that we shop at the high street stores."

"You can see a dress that Kate Middleton or Pippa wears, and you can go the next day to Warehouse or to Topshop and buy that dress and it's probably under 200 dollars," she said.

Nikki, who hails from London, also credits the Duchess of Cambridge and Pippa with helping to change the attitude of many stars in Hollywood.

"It used to not be cool for a celebrity to wear Topshop on the red carpet and now it's the thing to do."

"It's all about accessible clothing and things that people can actually go and buy, and it doesn't matter how much a dress costs, as long as you look good and you feel great," she added.

Mel B is known for her toned figure but the stunner admits that she hates going to the gym.

The 36-year-old pop singer, who gave birth to third daughter Madison recently, has to keep altering her exercise routine to stay motivated.

"Of course it's an effort! The hardest part is getting yourself to the gym. Once I'm there, I just do it. It's literally just a case of getting myself there," Contactmusic quoted her as telling Britain's Star Magazine.

"Sometimes I run, sometimes I do weights, sometimes I go take a class, sometimes I'll take a hike outdoors. I mean, it really depends on what mood I'm in," she said.

Mel advised women to work out an eating plan and establish a consistent exercise regime if they want to regain their pre-pregnancy figures.

"I don't know one woman who doesn't want to be back at the size she was before she was pregnant. Every woman wants to be back at the same size."

"It's just a case of dedicating yourself and just trying to be somewhat consistent with trying to work out your eating plan and everything else," she added.

Daisy Lowe has revealed that she judges men by their choice in footwear.

The 22-year-old British model further says that men donning a baseball cap "disgusts" her and she thinks the only person who can pull off the look is rapper Jay-Z.

"You can always judge a man by his shoes. I couldn't tell you what makes a bad pair of shoes, but if I saw them I would just know," Contactmusic quoted her as telling MrPorter.com.

"I like a good beanie hat on a man, but baseball caps disgust me -- they're so juvenile."

"If a man loves his baggy jeans and feels comfortable in them, he can wear them at any age, but I think that there's an age limit of 14 for baseball caps. But if you're a rapper like Jay-Z you can get away with it," she added.

Cheryl Cole has teamed up with cosmetics giant L'Oreal to create a limited edition of her first ever lipstick, from the Color Riche range called 'Red Passion', to raise money for her charity.

The lipstick is pegged at 8.16 pounds each and a pound from every sale will go to the The Cheryl Cole Foundation in aid of The Prince's Trust.

Cole said that she was 'thrilled' to be able to not only create her own lipstick, but to help charity at the same time.

"I love wearing lipstick as it is makes me feel glamorous whatever the occasion. I chose this iconic luxurious, red shade as it is the perfect dramatic accessory," the Daily Star quoted her as saying.

"I am so thrilled the funds raised from my L'Oreal Paris lipstick can make a difference to people's lives through my foundation with The Prince's Trust," she said.

Cheryl said that a lot of thought had gone behind choosing the shade of the lipstick as she wanted to pick one that would suit everyone.

"When selecting the shade I chose one I felt would flatter most hair and skin types, and is the red that everyone wants in their makeup bag," she added.

"I will be wearing my L'Oreal Paris Color Riche 'Red Passion' lipstick with minimal makeup and a touch of mascara to compliment the intense colour," she added.