Last Night's Look: Hit or Miss?

Vote on this week's styles including Anne Hathaway, Jennifer Lopez and more stars! You decide – are they fashionistas or flops?

01 of 49

ANNE HATHAWAY

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Michael Loccisano/Getty

The Love and Other Drugs sports a rockabilly-inspired do with a strapless floral dress, ankle-strap heels and a purple clutch – all by Miu Miu – with Bochic jewelry at the American Museum of Natural History’s 2010 Museum Gala.

02 of 49

JENNIFER LOPEZ

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Jordan Strauss/WireImage

marks her return to fashion with a bang in a curve-hugging, gray Gucci mini dress and python sandals during her Kohl’s press conference in L.A.

03 of 49

BLAKE LIVELY

BLAKE LIVELY
Richie Buxo/Splash News Online

gets into the holiday spirit, unveiling the sparkling Rockefeller Center Christmas Tree Swarovski star topper in a glittery jacket over a mini dress with a ruffled hem, Swarovski jewelry and cognac ankle boots.

04 of 49

JENNIFER GARNER

JENNIFER GARNER
Splash News Online

The do-gooder dons a classic black shift and matching pumps before paying a visit to Congress to ask for more educational funding on behalf Save the Children.

05 of 49

NATALIE PORTMAN

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INF

The of Parfums Christian Dior steps out in a snowy white Dior dress with a sheer overlay and Ivanka Trump diamonds at the 25th Anniversary Gala for FINCA International in New York.

06 of 49

EMMA ROBERTS

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Jamie McCarthy/WireImage

The actress helps kick off the much-anticipated Lanvin for H&M launch in New York wearing a belted strapless chiffon dress with a train, gold pumps, a Miriam Haskell ring and a matching Kotur clutch.

07 of 49

WHITNEY PORT

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INF

knows California cool! The City star celebrates the launch of L.A.’s IN ADD MINUS boutique in a cropped leather jacket topped silk shirt, satin harem pants – all from the boutique – accessorizing with studded yellow peep toes and a black clutch.

08 of 49

JESSICA SZOHR

JESSICA SZOHR
INF

Also at the L.A. boutique: Gossip Girl , who takes a sexy turn in a clingy IN ADD MINUS LBD and the season’s favorite leopard-print booties.

09 of 49

TARAJI P. HENSON

TARAJI P. HENSON
Stefanie Keenan/WireImage

Curves ahead! The actress flaunts a beige Hérve Leger bodycon mini with piping details at the designer’s South Coast Plaza opening in Costa Mesa, Calif.

10 of 49

ANNA KENDRICK

ANNA KENDRICK
Krista Kennell/Sipa

The actress makes a glittery appearance at the IN ADD MINUS L.A. flagship launch, wearing a navy halter dress from the boutique and gold pumps.

11 of 49

ASHLEY OLSEN

ASHLEY OLSEN
A Scott/BFAnyc/Sipa

Even moguls repeat looks! Wearing the same salmon-colored Balenciaga sweater and skirt she wore last month while shopping in Paris, counters the wintry N.Y.C. chill with matte black tights at the boutiques.com launch party.

12 of 49

HALLE BERRY

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Gary Gershoff/WireImage

can do no wrong! The megastar attends the New York screening of Frankie & Alice in a strapless ivory Pamella Roland stunner, coordinating clutch and strappy heels.

13 of 49

CAREY MULLIGAN

CAREY MULLIGAN
A Scott/BFAnyc/Sipa

Continuing to make the fashion party rounds, the actress attends the boutiques.com event in an animal print shift dress, modern bib necklace and ombré platforms.

14 of 49

CLAIRE DANES

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A Scott/BFAnyc/Sipa

shows off her lean physique in a two-toned gray Zac Posen sheath and black peep toes at the boutiques.com fête.

15 of 49

HEIDI KLUM

HEIDI KLUM
dpa/Landov

loves das auto! The model makes us green with envy in a belted emerald Victoria Beckham shift and matching pumps at the L.A. Auto Show, where she debuted the VW Eos.

16 of 49

MARY-KATE OLSEN

MARY-KATE OLSEN
A Scott/BFAnyc/Sipa

Also celebrating the boutiques.com launch: The of boho dressing herself, who arrives in a trench-topped patterned tunic over patterned tights, which she pairs with ankle booties and a mini cross-body purse.

17 of 49

WHITNEY PORT

WHITNEY PORT
Michael Tran/FilmMagic

The City makes a bright entrance in a sunny satin frock, statement necklace and nude peep toe booties at KIIS FM’s 7th Annual Pick Your Purse Party at Il Cielo restaurant in Beverly Hills.

18 of 49

ANNA PAQUIN

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A Scott/BFAnyc/Sipa

The blends tough and sexy in an oxidized Prabal Gurung metallic motocross mini dress and Cassandra clutch at Google’s boutiques.com launch party in New York.

19 of 49

JAYMA MAYS

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Sara De Boer/Startraks

The Glee star makes her mark, attending the GQ “Men of the Year” bash in a shirred Paule Ka mini dress, strappy Jimmy Choo sandals and a scarlet Kate Spade clutch.

20 of 49

ROSARIO DAWSON

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Steve Granitz/WireImage

Also at GQ, opts for a black cap-sleeved Dolce & Gabbana dress with oversized red blooms, Melinda Maria cuff and simple black pumps.

21 of 49

ANNE HATHAWAY

ANNE HATHAWAY
James Devaney/WireImage

The sparkles in a fringed lace Valentino Haute Couture dress with a chiffon bow and vintage Fred Leighton diamonds at the N.Y.C. premiere of Love and Other Drugs.

22 of 49

HALLE BERRY

HALLE BERRY
Rob Loud/WireImage

makes a timeless style statement in a strapless black Dolce & Gabbana column gown, a Marchesa clutch and diamond bracelet at the Harry Winston Court of Jewels event in N.Y.C.

23 of 49

LEIGHTON MEESTER

LEIGHTON MEESTER'S PEEKABOO ONESIE
Brian Ach/Getty

The Gossip Girl dares to bare in a plunging take on the black lace trend, adding Harry Winston jewels to her harem-leg Marchesa jumpsuit.

24 of 49

ASHLEE SIMPSON

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John Sciulli/WireImage

channels ’60s It-girl Edie Sedgwick with her cropped tresses, statement earrings and cigarette J Brand pants, but adds modern flair with an oversized striped pullover at a solsticesunglasses.com e-commerce luncheon in West Hollywood, Calif.

25 of 49

JULIANNE MOORE

JULIANNE MOORE
Paul Drinkwater/NBC

The actress stops by the Tonight Show with Jay Leno in a shirred mauve and black tank dress, tan strappy sandals and a voluminous ponytail.

26 of 49

OLIVIA PALERMO

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Prisma/Splash News Online

The new face of Mango cuts a sophisticated silhouette in camel trousers, an ivory silk blouse, cognac accessories and mussed hair at the brand’s Madrid fashion show.

27 of 49

KIM KARDASHIAN

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Jim Spellman/WireImage

The promotes her new retro-inspired jewelry line for bebe in velvet leggings, a taupe T-shirt and fitted Alex & Eli tuxedo jacket at the brand’s SoHo store.

28 of 49

ALEXA CHUNG

ALEXA CHUNG
Dave Allocca/Startraks

Chung attends the Love and Other Drugs screening in a scenic silk Valentino frock with black lace piping and pointy-toe heels with on-trend bows.

29 of 49

KATY PERRY

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Janet Mayer/Splash News Online

Perhaps she should call her new fragrance Purr’-ple instead! The covers up in a jewel-toned Zac Posen shift dress in the hue, Miriam Salat bangles and a Valeska necklace at the N.Y.C. launch for the new scent, Purr.

30 of 49

MELISSA GEORGE

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Charles Eshelman/Getty

The actress juxtaposes her deep plum, one-shouldered Christian Cota dress with a bold red lip at a Project Art event hosted at N.Y.C.’s Industria Superstudio.

31 of 49

KIM KARDASHIAN

KIM KARDASHIAN
Brian Zak/Sipa

The channels a Grecian goddess in a powder blue Zac Posen gown with colorful beaded bib at the 7th annual CFDA/Vogue Fashion Fund awards in N.Y.C.

32 of 49

EMMA WATSON

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Dave Allocca/Startraks

The opts for understated elegance in a minimalist black Calvin Klein Collection charmeuse slip dress and metallic sandals at the N.Y.C. premiere of Harry Potter and the Deathly Hallows: Part 1.

33 of 49

BLAKE LIVELY

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Sonia Moskowitz/Globe

True to form, the Gossip Girl actress shows off sinewy limbs in a two-piece crochet and lace Chanel LBD and on-trend merlot velvet heels at the CFDA event in N.Y.C.

34 of 49

SARAH JESSICA PARKER

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Mike Coppola/FilmMagic

The brings her fashion caché to the Harry Potter premiere, dressing up in a voluminous vested frock, matching cropped blazer and fierce ice blue Nicholas Kirkwood lace-ups.

35 of 49

ANNA PAQUIN

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George Napolitano/FilmMagic

The True Blood actress glitters like a sun-drenched vampire in a multi-colored sequined Richard Chai Love mini dress and patent Nicholas Kirkwood peep toes at the CFDA awards in N.Y.C.

36 of 49

CHRISTINA AGUILERA

CHRISTINA AGUILERA
Jordan Strauss/Getty

The venerable brings holiday cheer to the red carpet in a sweeping emerald Elie Saab green gown, gobs of Neil Lane diamonds and platinum ringlets at the L.A. Burlesque premiere.

37 of 49

LEIGHTON MEESTER

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Gary Gershoff/WireImage

The Gossip Girl glams up the CFDA awards in a monochromatic pleated organza Prabal Gurung frock with cascading beading and strappy peep toe booties.

38 of 49

CAREY MULLIGAN

CAREY MULLIGAN
Gary Gershoff/WireImage

The actress harkens back to Old Hollywood with a deep plum Chanel Haute Couture evening dress with a sweetheart neckline, bolero shoulders and an encrusted gold brooch at the CFDA awards.

39 of 49

JULIANNE HOUGH

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Jon Kopaloff/FilmMagic

The attends the Burlesque premiere in an off-the-shoulder, golden frock by Georges Hobeika Couture with beading, a gem-encrusted Judith Leiber clutch, Neil Lane jewels and metallic peep-toes.

40 of 49

MANDY MOORE

MANDY MOORE
Craig Barritt/WireImage

shines in a jewel-toned, one-shouldered frock, studs by Kara Ackerman and strappy gold sandals at the L.A. premiere of her animated flick, Tangled.

41 of 49

JESSICA SIMPSON

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Jamie McCarthy/WireImage

The newly-engaged beams in an all-black ensemble topped with a sheer cardigan vest – and her sparkling Neil Lane engagement ring! – while promoting her clothing line at a Dillard’s in Kansas.

42 of 49

RACHEL BILSON

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Stefanie Keenan/Getty

The never disappoints, stepping out in a sunny Chanel minidress and chain strap Camilla Skovgaard sandals to MOCA’s the Artist’s Museum happening in L.A., hosted by Chanel Fine Jewelry.

43 of 49

DEMI MOORE

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Jason LaVeris/FilmMagic

Textures are the focus for the , who pairs a cozy tweed Dolce & Gabbana jacket, slim leather pants from Victoria Beckham’s denim line and classic black booties at the Lotus New Era launch in L.A.

44 of 49

KATE BOSWORTH

KATE BOSWORTH
Billy Farrell/BFAnyc/Sipa

Chanel is the name of the game during the MOCA annual gala! epitomizes elegance in a black floor-grazing gown with sheer lace inserts and jewels – both by the French label.

45 of 49

TAYLOR SWIFT

TAYLOR SWIFT
Dave Hogan/Getty

is lacy in London! The singer poses in a belted cream Reiss frock and brown Mary Jane heels before performing at the BBC Radio 1 Teen Awards.

46 of 49

NATALIE PORTMAN

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Jason LaVeris/FilmMagic

The Black Swan graces the Governors Awards in Hollywood in a gorgeous draped Lanvin gown, matching heels and Jamie Wolf jewelry.

47 of 49

WHITNEY PORT

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Amanda Schwab/Startraks

The goes out with a stylish bang in a flirty ruffled blouse topped with a tweed jacket and cropped trousers – all by Esprit – at Esprit’s Big Bang event in New York.

48 of 49

HILARY SWANK

HILARY SWANK
Jim Smeal/BEImages

The ruffled up star dazzles at the Governors Awards in Hollywood in a strapless black-and-blue tulle Marchesa cocktail dress, Roger Vivier clutch and Van Cleef & Arpels jewelry.

49 of 49

MALIN AKERMAN

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Frazer Harrison/Getty

The actress sizzles in a slinky ivory Ralph Lauren Collection gown with leather shoulder straps at MOCA’s annual the Artist’s Museum gala in Los Angeles.

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