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The is glam as always in her peekaboo white gown, Swarovski clutch and jeweled sandals at the opening of the new Yamamai store in Rome.
2 of 50
The newly single goes trendy in her cropped black jumpsuit, cage sandals and bib necklace while promoting her fitness DVD Fit in Your Jeans By Friday at the Sierra Mist Beach House.
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smolders at a Vogue Australia event in Sydney in a scarlet dress with matching sandals and a statement necklace.
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The Julie and Julia lights up the film’s N.Y.C. premiere in an off-the-shoulder floral Carolina Herrera gown and loose curls.
5 of 50
She may look ready for the beach but the works the streets of Manhattan in a fringed asymmetrical Missoni dress and flat sandals.
6 of 50
The may have lost her luggage, but you would never know it by her perfectly put-together red Bottega Veneta suit and matching heels at the U.K. premiere of Broken Embraces.
7 of 50
The of Dolce & Gabbana The Makeup promotes the line in a retro-sweet floral top and tweed skirt – both from the Italian fashion house – with a perfectly red pout.
8 of 50
may have been born in 1985 but channels the ’80s with ease in her one-shouldered top and bandage skirt as as she arrives at Late Night with Jimmy Fallon.
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struts on the streets of London in a plunging black top, slit satin skirt and fitted gray jacket.
10 of 50
The Funny People star is no laughing matter in her feminine black Erin Fetherston ensemble finished with a gleaming bow belt and T-strap pumps as she leaves Live! With Regis and Kelly.
11 of 50
The dazzles at the Champions of Hope benefit gala for Children of the City in N.Y.C. in a black peekaboo Preen minidress with swirls of shimmering purple and black booties.
12 of 50
The may have broken it off with her beau, but she’s still looking radiant in a peacock blue button-up with peekaboo shoulders, harem pants and patent cage shoes on her way to visit It’s On With Alexa Chung.
13 of 50
She might be feeling blue, but the has never looked better in a ruffled sapphire Sonia Rykiel wrap dress and sexy T-straps at the Manhattan screening of Taking Woodstock.
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Her cowl-neck RM by Roland Mouret halter dress and Irit Design jewelry might be red hot but it’s the Julie & Julia star’s lacy leather Ferragamo platforms that style fans can’t keep their eyes off as the as heads to The Late Show With David Letterman in Manhattan. .
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Joining Express for an event promoting TXT L8TR, a star-studded campaign highlighting the dangers of texting on the road, the shows off her signature L.A. cool style in a printed black dress topped with a rolled-sleeve black Express blazer and nude platform pumps.
16 of 50
Talk about a fashion vixen! Ciara stays ahead of the style curve in a head-to-toe scarlet ensemble including a plunging Marchesa jumpsuit and matching pointy-toed pumps.
17 of 50
The Big Love star goes nude at the Blackberry Tour launch party in N.Y.C. in a long-sleeved trendy neutral minidress by Kimberly Ovitz and black buckled-up booties.
18 of 50
The gets casual on the Express TXT L8TR red carpet in worn-in jeans, a cropped Express motorcycle jacket and buckle-laden boots.
19 of 50
The style muse dazzles outside a Jean-Paul Gaultier shop in Paris, wearing a fashion-forward crimson top with trailing panels at the side, black dhoti pants and tie-top peep-toes.
20 of 50
She might be pregnant with her second child with , but the handbag designer shows off a slender figure at the Express TXT L8TR event in a white and navy tulip-skirted Poleci frock and classic pumps.
21 of 50
The Audrina Patridge Hills star gets gorgeous at a Red Bull Toasted event honoring action sports icon Travis Pastrana in a sexy black minidress with a V-neck panel and peep-toe platforms in Hollywood.
22 of 50
There’s nothing army-issue about the G.I. Joe: The Rise of Cobra ‘s graphic-printed Diane von Furstenberg minidress and sky-high booties, which she wore for a press conference in South Korea.
23 of 50
The takes a practice run in an elegant white Zac Posen gown with a jeweled waistband to attend the screening of Adam in N.Y.C.
24 of 50
New York’s city streets have never looked more stylish! The sizzles in lower Manhattan in a tan wrap dress, ankle wrap sandals and a jeweled clutch.
25 of 50
The enterprising singer makes time to support her dad, turning heads at a West Hollywood party for Joe Simpson’s new artist, An-Ya, in a sparkling minidress paired with patent platform pumps.
26 of 50
The touring gets bright at a post-concert party in N.Y.C., accenting a vivid tropical-print satin jumpsuit with pink patent peep-toe platforms.
27 of 50
You still have a couple of weeks until the return of Mad Men, but at the AMC cocktail reception, the show’s star gives a preview of her stunning curves in a figure-hugging emerald Catherine Malandrino dress with ruffled straps and golden sandals.
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Looking runway-ready, the German actress – and former model – is elegant on the Berlin red carpet for her film Inglourious Basterds in a sharp-shouldered, nude Hervé Léger bandage dress and barely-there sandals.
29 of 50
The Adam star puts a subtle spin on animal print at the film’s New York premiere in a ’40s-inspired, muted blue Christian Cota frock with Brian Atwood shoes and Bottega Veneta jewels.
30 of 50
Giving casual a stylish spin, tops a gray layering slip with a ruched tunic – both from Raquel Allegra – and fringed gladiators while doing a little grocery shopping in Beverly Hills, Calif.
31 of 50
After partying with over the weekend, the makes a coordinated outing in a Charley 5.0 denim tube dress, matching blue suede pumps and ’80s-style hat while out in N.Y.C.
32 of 50
It’s back to work for the , who makes a stylish summer statement in a red and white paisley print Twelfth Street by Cynthia Vincent halter dress and favorite Thomas Wylde bag while en route to a business meeting in Beverly Hills.
33 of 50
Setting off her fiery red hair with a white RM by Roland Mouret asymmetrical sheath dress, VBH clutch and Tiffany & Co. jewels, the is the star of the show at the Julie & Julia premiere in Los Angeles.
34 of 50
The British pop star launches her new jewelry line in style, layering her own charm chains over a black corset top, tuxedo blazer, matching skinny jeans and bright blue suede shoes.
35 of 50
The star brings style to the Capitol in her black-and-white floral Moschino frock and matching pumps at a Humane Society rally in Washington D.C.
36 of 50
Fashionista alert! The Twilight star hits a stylish note in her plunging, zipper-detailed Brian Reyes dress, strappy Jimmy Choo heels and bright orange clutch at the Los Angeles premiere of Julie & Julia.
37 of 50
Back in her native Germany, the former model makes for a stylish shopper in her off-the-shoulder yellow top, blue striped tulip skirt, statement necklace, metallic flats and Chanel bag.
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EVA LONGORIA PARKER
The dresses up for dinner at L.A.’s Beso in a belted gray jersey dress and metallic T-strap sandals.
39 of 50
She might have left the Hills, but the best-selling is still a party scene regular hosting her own soiree in a flapper-inspired fringed Jay Godfrey dress and matching black heels with a braided updo in Atlantic City over the weekend.
40 of 50
Adding some serious gold to her royal blue jumpsuit with layered chains – both from Petro Zillia – a metallic clutch and matching platform sandals, the gets ready to party in Malibu.
41 of 50
keeps it casual at San Diego’s Comic-Con in her Elizabeth and James cropped vest, long white Enza Costa Rogue tank, slim blue J Brand jeans, Ippolita earrings and a Tito Pedrini ring.
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covers up her famous figure in a shimmering Gucci metallic blazer, skinny black jeans and a peekaboo top while promoting Jonah Hex at Comic-Con.
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The first-time unveils her film Streak at the L.A. Shorts Fest in a simple white polo top under a frilly black dress.
44 of 50
The adds serious height to her stovepipe J Brand jeans and loose printed tank with towering Casadei platforms while promoting Sherlock Holmes at Comic-Con.
45 of 50
The flaunts her slimmer physique in a belted cream Dolce & Gabbana tank dress and peep-toe Christian Louboutin booties while touting Iron Man 2 at Comic-Con.
46 of 50
The actress promotes her film 9 at Comic-Con in a slim navy RM by Roland Mouret sheath dress and strappy sandals.
47 of 50
The unveils her line of bedding for Macy’s – Vida by Eva Mendes – at the store’s outpost in New York City’s Herald Square in a retro floral frock, Coomi gold hoops, an Ipollita turquoise ring and pale slingback heels.
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goes ’70s-glam in an intricately beaded suit over a midnight blue lame blouse – all by Gucci – at the G.I. Joe: Rise of the Cobra premiere in Tokyo.
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The keeps it simple in a black wrap dress and peep-toe pumps as she arrives with husband Andrew Upton at the 2009 Helpmann Awards at the Sydney Opera House.
50 of 50
The singer sets off her new punky do with a sexy leather Rock & Republic dress and matching heels from the line at the HollyRod Foundation’s 11th Annual DesignCare fund-raising event in Beverly Hills.