Sisters Sienna and Savannah Miller launched their collective fashion label, Twenty8Twelve, on Thursday at the Private Roof Club of Manhattan’s Gramercy Park Hotel. The hosts, along with Misshape Leigh Lezark, wore dresses from the 80-piece line entitled “An Anthology of Rebellion.” According to Sienna, the brand’s inspiration was a mix of the 1920’s and “free-thinking, radical people” like Patti Smith and Keith Richards. The “Interview” actress and trendsetter has been shopping, posing, and partying in Twenty8Twelve for months, and when Sienna dresses, the fashion world follows. Head to Bergdorf’s or Neiman Marcus to score your own Sienna-styled pieces.

A new Sisley advertisement has surfaced on the internet which has caused nothing less than a frenzy in the fashion world. The advertisement that is supposed to represent the Bennetton brand Sisley has been circulating the internet featuring two glamorous models snorting two straps of a white mini-dress as if they were lines of cocaine. Bennetton, the Italian clothing brand that is renowned for producing controversial ad campaigns has released a statement claiming that the ad is in fact “completely fake”. Sisley released an official statement on their website regarding the mock advertisement stating: “One of these images shows some girls ’sniffing a vest.’ The allusion to drugs and alcohol is more than clear. We would like to clearly state that the Sisley brand (and the Benetton company) has nothing to do with these images and therefore we refuse to be linked with them.” The company is currently in the process of taking legal action.

The metallic trend has managed to shine through again this year in various fall collections and is set to yet again be a major component for the fall season wardrobe. The trend was featured heavily on the runway with designers such as Sina-Stantic, Monique Lhullier, Oscar De La Renta, Badgley Mischka and Diane Von Furstenberg being just some of the designers who featured an array of head turning, shimmering dresses. From shimmering makeup, to metallic accessories the one thing that has become evident throughout the Fall collections is that the metallic trend is here to stay.

Jessica Alba dazzled in Dior by John Galliano to celebrate the 60th anniversary of the Christian Dior design house. She sat front row at the Paris Couture Week fashion show alongside Kate Hudson and Charlize Theron.

Jessica’s stylishly sophisticated look has remained consistent on red carpets from Britian to Berlin while promoting her new movie, “Fantastic Four: Rise of the Silver Surfer.” She has stuck almost exclusively to high-end designers, and has chosen Versace, Dolce & Gabbana, and Valentino at least twice each at various events and screenings for the action flick. Seems a little safe to me, but I’ve yet to see a picture of her looking less than gorgeous. Stick to what works!

Eye catching red was undoubtedly the dominant color of the fall runway and was a favorite in many top collections such as D&G, Versace, Christian Dior, Louis Vuitton and Marc by Marc Jacobs. The bright trend was featured in various different forms on the runway from head to toe red or simply as an add on accessory such as a bright lipstick, bag, belt or even a pair of shoes. So for all those who may have been wary about embracing the bright trend now is the time to invest as the color is going to be big news this fall.

Gap is set to launch yet another eye catching ad campaign for fall which features various celebrities and musicians posing in 12 black and white Annie Leibovitz portraits to promote its line of clothing “casual classics”. The campaign which is named “Classics Redefined” includes household names such as John Mayer (seen above sporting a $39.50 sweater), comedian Sarah Silverman, Actress Selma Blair and Actor Ken Watanabe are some of the celebrities involved. The ad campaign is set to run in the September issues of various national fashion magazines including Vogue, Vanity Fair, Elle and GQ. The portraits will also be featured on billboards and bus shelters around the country.

Armani debuted his Fall 07 collection at Milan fashion week and keeping in tune with the signature style produced a stunningly elegant, feminine collection which kept to classic shades of black, white, gray and baby pastels throughout. Although the collection featured a relatively minimal selection of trousers it did showcase an array of striking mini-dresses,tailored skirts, floaty blouses and sleek cocktail dresses which came in an array of colors such as black , blue, pink and green and were often paired with a pair of pointy flats.

It’s not often that we get to see Matt Damon off-screen, so its a good thing he looks so damn good when we do. In this GQ photoshoot for the August issue, he wears a Banana Republic jacket, Calvin Klein t-shirt, and Rolex watch. On the red carpet, he’s worn suits by Armani and Gucci.

Jessica Biel clutched this adorable Fendi bag last week at the premiere of her new comedy, “I Now Pronounce You Chuck and Larry.”  Her dress and shoes are by Giambattista Valli.  She looked gorgeous in Gucci at a special screening for the film in New York and stunned in scarlett Oscar de la Renta at a recent Cosmopolitan event.  The girl can do no wrong.  Besides Fendi, she loves bags by Yves Saint Laurent and Moschino.

John Mayer is more recognizable for his minivan-friendly rock than his fashion sense, but in this month’s GQ, he rocks designer duds like they were made for him. He’s stylishly suave in a Calvin Klein t-shirt, vintage sneaks by A Bathing Ape, Prada Jeans, and a Tommy Hilfiger coat. Like a modernized John Lennon with better hair. Jessica who?