Sienna Miller attended a screening of “The Mysteries of Pittsburgh” in New York City back in April wearing a Marios Schwab red dress.

The dress was massively modified from the runway to exclude the crystal-embellishments in the fold-detailed on the bodice and skirt.

Sienna wore her hair in a messy updo pairing her dress with black tights, black peep-toes and red lippie to match her dress.

On Sunday night Cheryl Cole appeared on the “X Factor” wearing the same dress with the sparkling crystals.

She kept her legs bare and added leg-lengthening Brian Atwood platforms.

As much as I didn’t like Cheryl’s hair, I much prefer her embellished dress as it had a bit more pizazz about it so she wins for me.

Credit: Style.com, Rex Features & Wireimage

Last night Sienna Miller attended the opening night party for “After Miss Julie” on Broadway at the Roundabout Theatre in New York City.

Yea…we didn’t have too long for the first celebrity to wear a dress from Balmain’s futuristic glam rock chick Spring 2010 collection on the red carpet.

Boo…to the totally boring black pumps Sienna Miller paired with it.

As much as I hate ankle boots, I think I would have preferred them to the very conservative pumps she paired with her sexy cut-out dress.

The sequined dress has 3/4 length sleeves with unfinished cuffs. It has intentionally distressed and torn areas all over with and even, unfinished hem that was screaming out for a fierce pair of heels.

This is a huge disappointment for me.

The sequin Destroy mini dress retails at £14,232.24 / €16,173 / $26,925.

“Astro Boy” Los Angeles Premiere

Kristen Bell’s Oscar de la Renta Resort 2010 navy blue and white embroidered dress works very well because she has kept accessories to a minimum.

She teamed her dress with a pair of simple cut-out heels.

30th Annual Salute To Women In Sports Awards, New York

Laila Ali is defying the myth that sportswomen can’t look elegant and feminine on the red carpet, by wearing a breath-taking raspberry silk chiffon one shoulder Tadashi Shoji gown with floral strap detail.

‘Up In The Air’ Premiere, London Film Festival

I always wondered how this Alberta Ferretti Fall 2009 chartreuse gown with a black beaded embroidered overlay would look on the red carpet.

Natascha McElhone keeps the look very simple, yet I just can’t fall in love with this look as stunning as the detail is.

Rag & Bone Soho Store Opening, New York

Sienna Miller wore a Rag & Bone ensemble including grey shorts, cropped jacket and shoe-boots to the Rag & Bone SoHo store opening.

Even when she dresses down still looks gorgeous.

L’Oreal Paris Recieves Friend Of The Walk Of Fame Award, LA

Actresses Eva Longoria Parker, Andie MacDowell and Kate del Castillo attended this event as the ambassadors of L’Oreal.

Eva wore a two tone grey Nicole Miller Studio One tweed pencil dress with an asymmetrical neckline, whilst Andie was divine in a printed dress.

Kate was equally chic in a black chiffon top and wide-legged white pants.

Samantha Thavasa Special Meet And Greet With Beyonce, Tokyo

After her last trip to Japan back in August Beyonce Knowles returned sans Solange to promote her Samantha Thavasa bags.

The singer wore a Roberto Cavalli ultra mini dress, paired with Rock & Republic Celina heels

Moet & Chandon “Tribute To Cinema”, Japan

Scarlett Johansson maybe wearing a vintage Haute Couture Givenchy gown and Christian Dior heels, but I just can’t raise a smile whilst for this look.

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Out & About in Double Bay, Sydney

Miranda Kerr was out shopping wearing an Isabel Marant Fall 2009 ensemble.

She combined a leopard print skirt, a boyfriend blazer and a grey sweater to achieve her off-duty look.

The manly boots are not what I would have worn, as they make her feet look really long.

It’s Y!ou Yahoo! Yodel Competition, New York

LeAnn Rimes is the 6th or 7th celebrity to have worn this Kimberly Ovitz Jacob jersey mini dress, but she’s the only one to have belted the dress.

It’s now the most worn dress on the red carpet, which really surprises me as I much preferred the Kimberly Ovitz Martin jersey cutout dress which was also favoured by AnnaLynne McCord and Olivia Wilde.

Philippe West Hollywood Opening Celebration, LA

Serena Williams wore navy patent heels and sheer shimmering tights with her 3.1 Phillip Lim beaded silk dress.

I don’t hate this look, but I’m sure some might argue her legs are too muscular for this dress but I would disagree.

My biggest problem is the champagne clutch.

Hammerstein Ballroom, New York

Kylie Minogue was greeted by her fans outside New York’s Hammerstein Ballroom were she has been performing.

The petite pop princess might have had a hectic schedule, but she wasn’t showing any signs of fatigue as she look beautiful wearing a YSL Fall 2009 grey jumpsuit, paired with a lace bandeau.

After the show she looked even better wearing a high-neck leather dress, paired with the same YSL Divine boots we’ve seen on Diane Kruger.

Ritz Carlton Hotel, New York

Jessica Simpson was spotted leaving her hotel in New York en route to the “FFANY Shoes On Sale” wearing a black belted coat from Stella McCartney’s Resort 2010 collection.

16th Annual QVC Presents FFANY Shoes On Sale, New York

When Jessica arrived at the event she whipped off her Stella McCartney coat to reveal a black and silver paillette covered Dolce & Gabbana LBD paired with a wrap-around black belt plus Debista 2 Pumps from her own footwear line.

Her hair was swept up into a messy up ‘do, whilst her eyes were sultry and smoky.

National Museum Of The American Latino Commission Press Conference, Washington

Eva Longoria wore a red Diane von Furstenberg sheath dress paired with nude pumps.

I would’ve never considered red and nude together, but it’s a very interesting colour combination.

“Late Show With David Letterman”, New York

Sienna Miller wore Pierre Hardy suede pumps paired a black harem pant jumpsuit with a bejeweled shrug.

I’m not particularly crazy about the top layered part of the jumpsuit, but she looks beautiful as always.

2009 MAD Paperball Gala

Rose McGowan matched her bright red lips with her red structured bow accented top and a black mini skirt.

Her vintage Bill Blass ensemble certainly has the wow factor.

Credit: Style.com, PacificCoastNews & Wireimage

Rihanna was spotted shopping at the Grove in LA with her assistant Melissa Forde back in February wearing a rather cute look.

The singer wore a blue shirt, tan Chloe heels, a cream Twenty8Twelve Wilma skirt, plus an array of ivory accessories completed her look.

I loved Sienna Miller’s chic summery ensemble of a striped sleeveless top, bold red statement necklace, Rupert Sanderson brogues, and her favourite burgundy Prada Saffiano & Tessuto Tote.

I wouldn’t change a thing about this outfit, she is head to toe perfection.

Sienna Miller’s back at the top of her fashion game and her nautical look wins for me - even with brogues it’s the perfect summer outfit.

Credit: PacificCoastNews & Twenty8Twelve

Sienna Miller was your Best Dressed this week wearing a strapless icy-blue Thakoon mini dress with gold Jimmy Choo heels, after fighting off Ashlee Simpson and beating her by only 1%.

Michelle Monaghan was by far my favourite this week.

I loved her body-sculpting Rachel Roy long sleeved navy dress with bold shoulders, paired with Manolo Blahnik heels.

It’s not easy to wear such a dress, but she oozed confidence and sexy sophistication.

Credit: Wireimage.

Whilst looking through Sienna Miller pictures I came across these snaps of her in Paris last month whilst promoting “G.I. Joe: The Rise of Cobra”, which I missed the first time around.

I missed it because this trip wasn’t part of their official tour, the cast were visiting the Eiffel Tower during their time off.

Even during her down time Miss Miller still look fabulous - thanks to her team of make-up people on standby - wearing a Erdem Resort 2010 mini dress with her emerald green Chloe heels.

I loved this collection because of the abstracted florals which cover Sienna’s two tone dress. I love this dress on her more than the model.

It’s such a shame this was never a red carpet, or TV show dress. It really deserved a big occasion.

Sienna’s BFF fellow Brit Keira Knightley has also wore a dress from this collection.

Credit: Style.com & Fame