Last Night's Look: Hit or Miss?

Vote on this week's styles including Taylor Swift, Hilary Duff and more stars! You decide – are they fashionistas or flops?

01 of 44

TAYLOR SWIFT

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Matrix/Flynet

The makes a regal debut at the GMTV studios in London in a flirty Rebecca Taylor lavender dress and high-heeled gladiators.

02 of 44

HILARY DUFF

HILARY DUFF
Donna Ward/ABACA

It’s all about the accessories as hits JCPenney’s I Heart Ronson celebration in N.Y.C. in a long gray tee and black leggings accented with a draped scarf, statement earrings and strappy booties.

03 of 44

ASHLEE SIMPSON WENTZ

ASHLEE SIMPSON WENTZ
Jordan Strauss/WireImage

The Melrose Place gets shows off pearly whites at the InStyle Summer Soire in West Hollywood in an iridescent corseted Jill Stuart romper festooned in vintage Lia Sophia pearls, neutral patent pumps and a white clutch.

04 of 44

TAYLOR SWIFT

TAYLOR SWIFT
Splash News Online

The jetsets in style, leaving a London hotel in a silky purple Tracy Reese frock and canary yellow bag.

05 of 44

RENéE ZELLWEGER

RENéE ZELLWEGER
Richie Buxo / Splash News Online

Continuing her week of gorgeous Carolina Herrera frocks, the heads to The Late Show With David Letterman in N.Y.C. in a strapless sapphire stunner and metallic pumps matched to her dazzling cuffs.

06 of 44

SOPHIA BUSH

SOPHIA BUSH
Theo Wargo/WireImage

Going ultra-feminine, the One Tree Hill star pairs a coral chiffon top with a black pencil skirt and booties, for the JCPenney I Heart Ronson celebration in Manhattan.

07 of 44

SARAH JESSICA PARKER

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Pacific Coast News

The to twins makes takes an early morning stroll through N.Y.C. in a Sex and the City-worthy outfit, adding flair to her black empire-waist frock with sexy T-straps and a quilted pink carry-all.

08 of 44

MISCHA BARTON

MISCHA BARTON
Astrid Stawiarz/Getty

gets fresh at the JCPenney I Heart Ronson event, wearing a red statement necklace that plays off her rose-strewn Topshop skirt and black-and-pink Alexander McQueen booties.

09 of 44

JESSICA BIEL

JESSICA BIEL
ME/Flynet

The has been doing her fashion homework, pairing a black pencil skirt with a neutral ruffled top, white bag and flats while grocery shopping in Hollywood.

10 of 44

JESSICA STROUP

JESSICA STROUP
Jordan Strauss/WireImage

When you hit an InStyle party, you’d better live up to the name – and the 90210 star does just that in a fashionable black strapless Rachel Roy minidress with lace panels, black pumps and a patent clutch.

11 of 44

MELISSA GEORGE

MELISSA GEORGE
Andrew H. Walker/Getty

The actress balances her black asymmetrical frock with bold ankle-wrap sandals and a glimmering clutch at the opening of the Calvin Klein Collection shop at Saks Fifth Avenue in N.Y.C.

12 of 44

SIENNA MILLER

SIENNA MILLER
Amanda Schwab/Startraks

Joining fashion’s elite for the anticipated premiere of a documentary about the making of the Vogue September 2007 issue, goes high fashion on The September Issue red carpet in a draped cerulean minidress, gold sandals and a Bottega Veneta clutch and Erickson Beamon earrings.

13 of 44

BEYONCé

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Big Pictures/Bauer-Griffin

The takes the plunge while disembarking from her yacht in Croatia, wearing a low-cut, hot pink Hervé Léger bandage dress matched to her lips and fringe-laden metallic booties.

14 of 44

GWEN STEFANI

GWEN STEFANI
Fame

Keeping casual stylish, drapes an asymmetrical white T-shirt over cropped black trousers and snakeskin pumps for a stroll in West Hollywood.

15 of 44

RENEE ZELLWEGER

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Jamie McCarthy/WireImage

Wearing yet another Carolina Herrera stunner, the actress dazzles at the N.Y.C. premiere of The September Issue in an orange and gold floral lamé dress by the designer, a Fred Leighton ring and nude sandals.

16 of 44

EVA MENDES

EVA MENDES
Fame

Turning heads in Hollywood, the shops in style wearing a red paisley printed shirt-dress and neutral wedges.

17 of 44

CATE BLANCHETT

CATE BLANCHETT
Don Arnold/WireImage

The accents her classic black dress with fashion-forward accessories, including cut-out booties, a statement necklace and metal clutch at the Audi LightHouse showroom launch in Sydney.

18 of 44

KARINA SMIRNOFF

KARINA SMIRNOFF
MAXA /Landov

The Dancing With the Stars hoofer gets tier-y after a haircut in L.A. in a yellow frock layered in ruffles and gold gladiator flats.

19 of 44

CASSIE

CASSIE
Jamie McCarthy/WireImage

For The September Issue premiere in Manhattan, the edgy singer is on-trend in a tie-waist jumpsuit, patent platform booties and bold gold accessories.

20 of 44

RENéE ZELLWEGER

RENéE ZELLWEGER
Jemal Countess/Getty

Fresh off a vacation to Barcelona with her Code 39 co-star Bradley Cooper, the is radiant in an anthracite, one-shoulder Carolina Herrera satin dress with beaded belt, nude pumps and Fred Leighton jewels for the New York premiere of her flick My One and Only.

21 of 44

KRISTIN CAVALLARI

KRISTIN CAVALLARI
Marcos Vasquez/BuzzFoto/FilmMagic

Taking time out for some primping, the Hills leading lady tops her simple white tank dress with tough accessories including a leather motorcycle jacket, studded Alexander Wang bag, ombré yellow scarf and beaded sandals for a trip to a Beverly Hills salon.

22 of 44

CHRISTINA APPLEGATE

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Disciullo/Bauer-Griffin

The tops her classic black pencil skirt with a draped-front, hot pink top while stopping by Good Morning America to promote breast cancer awareness.

23 of 44

DIANE KRUGER

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Ray Tamarra/Getty

Continuing her fashionable tour, the Inglourious Basterds star takes a stylish turn on The Late Show With David Letterman in a black mesh-topped Chanel dress with silver appliqué including mirrored, sharp shoulders.

24 of 44

AUDRINA PATRIDGE

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MAXA/Landov

The party doesn’t stop for the budding who shows off some seriously destroyed denim paired with a sheer black tank and knee-high boots for a night out in West Hollywood.

25 of 44

THANDIE NEWTON

THANDIE NEWTON
Sharky / Splash News Online

Despite the California heat, the stylish star wraps up in a long white and navy coat paired with tan T-strap sandals and a matching blue clutch for dinner in West Hollywood.

26 of 44

LINDSAY LOHAN

LINDSAY LOHAN
Jamie McCarthy/WireImage

The makes a proportion play at the N.Y.C. screening of Inglourious Basterds in a micromini and tiny tank paired with open-toed ankle booties and extra-long blonde locks.

27 of 44

SIENNA MILLER

SIENNA MILLER
Ramey

earns her fashion stripes in a blue and white top and flouncy Twenty8Twelve skirt accented with lace-up flats and a burgundy Prada bag matched to her statement necklace while out in New York.

28 of 44

DIANE KRUGER

DIANE KRUGER
Amanda Schwab/Startraks

The Inglourious Basterds actress is gorgeous at the N.Y.C. screening of the film, pairing a sequined Miu Miu minidress with ankle-wrap sandals and bright red lips.

29 of 44

MICHELLE MONAGHAN

MICHELLE MONAGHAN
Sara Jaye Weiss/Startraks

Taking a sharp-shouldered approach at the Inglourious Basterds screening in New York, the actress goes fashion-forward in an architectural blue Rachel Roy dress and white sandals.

30 of 44

CHRISTINA APPLEGATE

CHRISTINA APPLEGATE
Ron Smits/London Ent/Splash News Online

The heeds the call of the wild in a silky leopard print Reem Acra wrap dress and sexy black d’orsay pumps while heading to the Late Show With David Letterman in Manhattan.

31 of 44

RENéE ZELLWEGER

RENéE ZELLWEGER
Doug Meszler/Splash News Online

Highlighting her super-svelte figure, the gets gorgeous in a body-skimming gray Carolina Herrera sheath, nude pumps and a vivid orange tote while visiting Good Morning America in the Big Apple.

32 of 44

WHITNEY PORT

WHITNEY PORT
Splash News Online

The shortens up her look in a cropped denim button up, printed Porter Grey short-shorts, lavender ankle-wrap Chloé sandals and an exotic LAI tote in N.Y.C.’s West Village.

33 of 44

MELISSA GEORGE

MELISSA GEORGE
Richie Buxo/Splash News Online

The Grey’s Anatomy actress sizzles on the Inglourious Basterds red carpet in a made-to-match draped Yigal Azrouel frock with blouson sleeves and black accessories.

34 of 44

ASHANTI

ASHANTI
Joe Schildhorn /PatrickMcMullan.com/Sipa

A high-fashion night calls for a stylish look, and Ashanti delivers at the Louis Vuitton and Details party in New York, wearing a feather skirted dress, sky-high platforms and a chic bag strapped across her chest.

35 of 44

VICTORIA BECKHAM

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Fame

Turning American Idol into her own runway show, the new strikes a pose in her own designs, including a sheer-top navy and black sheath from her dress line and dVb shades, before heading to auditions for the reality show in Boston.

36 of 44

BEYONCé

BEYONCé
Freddie Baez/Startraks

The turns heads in her black-and-white spotted romper cinched with a patent Chanel belt, long beaded necklaces and matching platform pumps for an early dinner date with husband Jay-Z (not pictured) in New York City.

37 of 44

AUDRINA PATRIDGE

AUDRINA PATRIDGE
Denise Truscello/WireImage

Helping her Sorority Row co-star, Rumer Willis (not pictured), ring in her 21st birthday, the budding keeps it classic in a little black dress, matching peep-toes and a chain-strap bag at the Vegas bash.

38 of 44

CHRISTINA AGUILERA

CHRISTINA AGUILERA
Ramey

It’s date night for the , who adds bold pops of blue to her black leggings and striped scarf with a sapphire sweater and matching pumps for dinner in Los Angeles with husband Jordan Bratman (not pictured).

39 of 44

TORI SPELLING

TORI SPELLING
Albert Michael/Startraks

is pretty in a pink chiffon frock! by Tracy Reese dress complete with a sparkling collar and gold wedge sandals for the launch of her children’s clothing line, Little Maven, in Century City, Calif.

40 of 44

KOURTNEY KARDASHIAN

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PA Photos /Landov

The mom-to-be heads poolside to the Wet Republic in Las Vegas to celebrate the premiere of her new reality show, Kourtney and Khloe Take Miami, in a billowy, tribal-print top, denim cuffed shorts and jeweled sandals.

41 of 44

RUMER WILLIS

RUMER WILLIS
Denise Truscello/WireImage

She’s ready to party! The is Vegas-ready in a sparkling Toni Maticevski minidress and patent platforms to celebrate her 21st birthday at TAO in Sin City.

42 of 44

GINNIFER GOODWIN

GINNIFER GOODWIN
Amanda Edwards/Getty

Sporting her new short do, the actress keeps coordinated in a matching Brian Reyes striped top and skirt for the 2009 GLSEN Respect Awards party in Beverly Hills.

43 of 44

LESLIE MANN

LESLIE MANN
Kevin Winter/Getty

The Shorts star goes high fashion in a green and black Oscar de la Renta brushstroke dress with lacy trim for the movie’s Hollywood premiere.

44 of 44

MELANIE BROWN

MELANIE BROWN
Chelsea Lauren/WireImage

Showing off her enviable curves, the star sparkles in a second-skin, sequined bandage dress and strappy python Christian Louboutin sandals at the Terranea Resort in Rancho Palos Verdes, Calif.

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