Last Night's Look: Hit or Miss?

Vote on this week's styles including Reese Witherspoon, Maggie Gyllenhaal and more stars! You decide – are they fashionistas or flops?

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REESE WITHERSPOON

REESE WITHERSPOON
Fame

The puts a country twist on her preppy pleated skirt and cardigan thanks to some suede cowboy boots while going to the salon in L.A.

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MAGGIE GYLLENHAAL

MAGGIE GYLLENHAAL
Russ Einhorn/Splash News Online

helps celebrate her Nanny McPhee Returns costar Emma Thompson’s Hollywood Walk of Fame star in an intricate red sheath and black flat sandals.

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KRISTIN CAVALLARI

KRISTIN CAVALLARI
Xposure

The California is summer chic in her ruffled lavender camisole, skinny white jeans and tough sandals while running errands in Los Angeles.

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EVA MENDES

EVA MENDES
Splash News Online

Another day, another designer dress for who stops by Jimmy Kimmel Live! in Los Angeles in floral Oscar de la Renta accessorized with rose-topped peep-toes and a matching Dior purse.

05 of 46

RIHANNA

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O'Neill/White/INF

Well, that’s one way to beat the heat! The fierce leaves her Toronto hotel wearing a barely-there bra top and ruffled miniskirt accessorized with Oliver Peoples shades, bow-topped pumps and long gold chains.

06 of 46

JADA PINKETT SMITH

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Jun Sato/WireImage

Playing the proud – and stylish! – mama, rocks a glittering black puff sleeve Rafael Cennamo dress and matching platforms at the Tokyo premiere of The Karate Kid which stars son Jaden.

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IMAN

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Bryan Bedder/Getty

The supermodel is red-hot in a scarlet Victoria Beckham sheath dress cinched with a metallic gold belt and paired with classic black peep-toe pumps while ringing the closing bell of the New York Stock Exchange in honor of Essence’s 40th Anniversary.

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RACHEL BILSON

RACHEL BILSON
Splash News Online

Keeping it casual, the steps out in a navy cardigan and gray tank tucked into belted Anlo jeans accessorized with a chain-strap Chanel raffia bag and tan flats.

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AMY SMART

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LuMar Jr./AFF-USA

It’s all about the glitz and glam for the actress who pairs a draped white Tadashi Shoji dress with jeweled sandals and a geometric statement necklace at the Los Angeles premiere of Middle Men.

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SELMA BLAIR

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Picture Perfect/Rex USA

The actress keeps it simple in a black organza Stella McCartney strapless cocktail dress and matching peep-toes for the Los Angeles premiere of Middle Men.

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JESSICA STROUP

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LuMar Jr./AFF-USA

Even the movies are a stylish affair for the 90210 star who leaves a Hollywood theater in a mini floral skirt and cream peep-toe booties topped with an olive jacket and a cross-body purse.

12 of 46

JACINDA BARRETT

JACINDA BARRETT
Sara De Boer/Startraks

The Australian-born beauty stuns in a sharp-shouldered white satin Camilla & Marc dress with a pastel striped bottom, Neil Lane jewels and purple pumps for the Los Angeles premiere of Middle Men.

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EVA MENDES

EVA MENDES
Albert Michael/Startraks

Continuing her stylish tour, stops by Good Day L.A. to promote her new film The Other Guys in a sweet white sheath by Lela Rose and blush pink peep-toe pumps.

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JULIA ROBERTS

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James Devaney/WireImage

keeps it cool in a blousy black top and flare J Brand jeans accessorized with movie star shades and an ethnic printed purse for a stop on The Late Show With David Letterman to promote for her new flick Eat, Pray, Love.

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HEIDI KLUM

HEIDI KLUM
Ramey

The takes her nautical European vacation to land strutting down a Portofino street in a flowing, tiered halter dress and tough sandals.

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FERGIE

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Larry Busacca/Getty

makes for one chic perfumer debuting her new fragrance, Outspoken, in a sheer-sleeved, black-and-peach ruffled mini dress at the Prudential Center in New Jersey.

17 of 46

GWYNETH PALTROW

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INF

It’s just another stylish day for who hits the shops in New York City rocking slouchy Current/Elliott pants, her favorite Givenchy sandals, a crisp black blazer and layered necklaces.

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KRISTIN CAVALLARI

KRISTIN CAVALLARI
Jason LaVeris/FilmMagic

The Hills may be over, but still in the spotlight donning a blousy white tank dress and leopard platform sandals for the grand opening of a Kiehl’s Since 1851 store in Canoga Park, Calif.

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RACHEL BILSON

RACHEL BILSON
310Pix

Even a trip to the nail salon is a stylish affair for who steps out in a pleated skirt, floral raffia Chanel purse and studded green sandals in Los Feliz, Calif.

20 of 46

KYRA SEDGWICK

KYRA SEDGWICK
Mark Sullivan/WireImage

The Closer star is getting a jump-start on fall fashion donning a zip-front, navy satin dress and tan strappy sandals for The Academy of Television Arts & Sciences’ Performers Peer Group party in Beverly Hills.

21 of 46

KIM KARDASHIAN

KIM KARDASHIAN
Todd Williamson/FilmMagic

flaunts her famous curves in a clingy black Oriett Domenech dress with peekaboo top for the Power Balance “All-In For A Cure” event in Hollywood.

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EVA MENDES

EVA MENDES
Jayme Oak/Startraks

After a glamorous turn at The Other Guys premiere, the sultry is simply chic in a frilly Madewell floral dress, platform sandals and a rippled blush purse in N.Y.C.

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JESSICA ALBA

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RIV/Fame

The always-stylish steps out in on-trend slouchy olive pants paired with a swing cardigan and chunky gemstone necklace while shopping in Los Angeles.

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ALI FEDOTOWSKY

ALI FEDOTOWSKY
Albert Michael/Startraks

Taking her new bling for a shopping trip, the former Bachelorette gets stylish in an L.A. Armani Exchange shop rocking a striped top, short-shorts and lace-up platform heels.

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KHLOE KARDASHIAN

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Jordan Strauss/WireImage

It’s all about the accessories for Sister, who pairs a sexy one-arm black dress with an exotic Adriana Castro clutch and tough platform sandals for the Power Balance “All-In For A Cure” event in Hollywood.

26 of 46

TAYLOR MOMSEN

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Asadorian-Mejia/Splash News Online

Channeling the original Material Girl, Taylor rocks out in a black cropped corset top topped with leather jacket and low-slung trousers at the launch of Material Girl clothing line at Macy’s in N.Y.C.

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NAOMI WATTS

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Humberto Carreno/Startraks

beats the N.Y.C. heat in style in a spotted tank dress, strappy sandals, aviator shades and simple gold bangles.

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THANDIE NEWTON

THANDIE NEWTON
INF

The style star adds a girly touch to her graphic T-shirt and cropped jacket with a flirty ruffled skirt and strappy sandals for an event in London.

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LAUREN "LO" BOSWORTH

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Todd Williamson/FilmMagic

The former Hills star tops her printed romper with a messy up do, suede pumps and chain-strap purse for the Power Balance “All-In For A Cure” event in Hollywood.

30 of 46

EVA MENDES

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Johns PkI/Splash News Online

The channels ’50s glamour in a dove gray Oscar de la Renta cocktail dress with a bow-tied over-skirt, Sergio Rossi pumps and Van Cleef & Arpels diamonds for the premiere of The Other Guys in N.Y.C.

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LEA MICHELE

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Axelle Woussen/Bauer-Griffin

Glee’s stylish star poses at the Fox Summer Press Tour Party in Santa Monica, Calif. draped in a printed Giambattista Valli gown and beachy waves.

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KATY PERRY

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Kristian Dowling/PictureGroup

Meow! The kitty-loving perfumer translates feline fever to apparel, rocking a leopard-print chiffon dress by Pencey at the MTV World Stage press conference in Kuala Lumpur, Malaysia.

33 of 46

ALI FEDOTOWSKY

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Tiffany Rose/WireImage

She might have left her new fiancé – and her 3.03-carat ring – at home, but the Bachelorette still sparkled at Young Hollywood Studios in a gold-embellished strapless dress.

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KATE WALSH

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Sara De Boer/Startraks

The actress pares back her look, heading to the Disney and ABC Summer Press Tour in Beverly Hills in a simple fitted brown dress topped with a cream blazer.

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KE$HA

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Janet Mayer/Splash News Online

With an arm striped in blue and lips to match, the singer hosts the Casio Shock the World event, rocking a one-shoulder Topshop minidress, booties and cuff – plus a tangle of watches.

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MICHELLE TRACHTENBERG

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Dimitrios Kambouris/WireImage

Gossip Girl’s resident bad girl is looking good at a Nylon Guys party in N.Y.C., striking a pose in an ornate metallic top and skinny leggings.

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KHLOE KARDASHIAN

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Jerritt Clark/Getty

The reality star hits the Casio Shock the World event in not-so-basic black, accenting sparkling leggings with a blazer and strappy sandals.

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KIM KARDASHIAN

KIM KARDASHIAN
Dimitrios Kambouris/WireImage

The does her part to bring attention to the Ovarian Cancer Research Fund, supporting the InStyle- and QVC-sponsored Super Saturday 13 event in Water Mill, New York in an orange draped skirt, and cream top cinched with a bold belt.

39 of 46

LAUREN CONRAD

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MJT/AdMedia

Lounging pool-side has never looked more chic! tops her black bikini with a metallic threaded cover-up to host an afternoon at Tao Beach at the Venetian Resort in Las Vegas.

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VICTORIA BECKHAM

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INF

keeps her look high-fashion for a party in London, wearing an embellished red dress and matching jacket.

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KELLY RIPA

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Lisa Wagner/Splash News Online

The talk show turns out for a cause, co-hosting the Super Saturday 13 event to benefit the Ovarian Cancer Research Fund in a flapper-inspired frock and nude pumps.

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RIHANNA

RIHANNA
INF

The keeps her signature style going post-show, leaving a concert in Miami, Florida in a micro-printed miniskirt and spaghetti-strap top.

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MICHELLE TRACHTENBERG

MICHELLE TRACHTENBERG
Sara Jaye Weiss/Startraks

Rocking the perfect summertime look at the Mercedes-Benz Polo Challenge in Bridgehampton, the actress poses in a floral Rebecca Taylor maxidress and superstar shades.

44 of 46

ASHLEY GREENE

ASHLEY GREENE
Dimitrios Kambouris/WireImage

Joining the exodus of Hollywood’s elite to the Hamptons, co-hosts the Super Saturday 13 event benefiting the Ovarian Cancer Research Fund wearing an airy white PureDKNY dress paired with Marie Todd earrings and a Sandy Leong bracelet and ring.

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SOFIA VERGARA

SOFIA VERGARA
Albert L. Ortega/PictureGroup

Modern Family’s sexy star makes the most of her curves in a sapphire sheath accented with golden accessories at an ABC event in Beverly Hills.

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EVA LONGORIA PARKER

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JCalderon/Splash News Online

Dining out in style, the pairs her two-tone romper with towering platforms in L.A.

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