Last Night's Look: Hit or Miss?

Vote on this week's styles including Rihanna, Katie Holmes and more stars! You decide – are they fashionistas or flops?

01 of 52

RIHANNA

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Gotcha Images/Splash News Online

The goes bold with color, pairing her fire engine red hair with a purple cropped top and orange high-waisted pants, while visiting a London radio station.

02 of 52

KATIE HOLMES

KATIE HOLMES
Juan Rico/Fame

Forget fall! ‘s look is in bloom at the Variety Power of Women luncheon in Beverly Hills, where the actress donned a flower-garden Louis Vuitton frock over black tights and pumps.

03 of 52

BEYONCé

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Kevin Mazur/Child/WireImage

Putting the hot in hot pink, the drapes her curves in a fuchsia Andrew Gn gown at the Keep a Child Alive Black Ball in N.Y.C.

04 of 52

ANNE HATHAWAY

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Juan Rico/Fame

Now this is how you work black and blue! steps out at the Variety Power of Women luncheon in a fitted sheath, classic Brian Atwood pumps, Caleo earrings and a Kara Ackerman Designs bangle.

05 of 52

JENNIFER GARNER

JENNIFER GARNER
Jill Johnson/JPI

looks like the consummate lady who lunches, attending the same Power of Women luncheon in a belted Christian Dior wool and chiffon dress and tan pumps.

06 of 52

HALLE BERRY

HALLE BERRY
API/Fame Pictures

heats up Hamburg, making the German debut of her upcoming fragrance Reveal in a leg-baring sequined minidress and metallic peep-toes.

07 of 52

BLAKE LIVELY

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Andrew H. Walker/Getty Images

The Gossip Girl is a vision in an Elie Saab tulle-and-lace dress and sheer peep-toe pumps at Tiffany & Co.’s Eyewear collection launch party in N.Y.C.

08 of 52

AMY ADAMS

AMY ADAMS
INF

Without an ounce of baby weight in sight, the new mom is in the pink at the Variety Power of Women luncheon in Roland Mouret one-shoulder dress and Irit Designs earrings with nude pumps.

09 of 52

JENNIFER HUDSON

JENNIFER HUDSON
Janet Mayer/Splash News Online

, is that really you? The slimmed-down star, who says she’s in the best shape of my life, sizzles at the Keep A Child Alive Black Ball in a strapless velvet LBD with a pin accent at the hip, strappy sandals and a fall-perfect maroon lip.

10 of 52

AUDRINA PATRIDGE

AUDRINA PATRIDGE
Michael N. Todaro/Getty Images

With rock-star makeup to match her leather jacket, denim and tee, the steals the spotlight at the Make Up For Ever launch at the SoHo Sephora in New York.

11 of 52

TYRA BANKS

TYRA BANKS
INF

stuns in a floor-length Roberto Cavalli sequin gown and a mask – a DIY masterpiece she made out of fishnet stockings! – at French Vogue’s 90th anniversary Masquerade Ball in Paris.

12 of 52

KATHERINE HEIGL

KATHERINE HEIGL
B. Ach/INF

channels classic Hollywood glamour with a sleek updo and a David Meister one-shoulder ruby cocktail number with bow detail, strappy gold Rene Caovilla sandals and a sequined clutch at the premiere of her new romantic comedy, Life As We Know It.

13 of 52

NICOLE RICHIE

EVENING SHORTS
Humberto Carreno/StarTraks

In town to promote her new novel Priceless, the accessory-loving steps out of her Manhattan hotel in a striped shirt and blue velvet hot pants topped with a cropped blazer – both from her Winter Kate line – paired with a vintage leopard print hat and her go-to half-tint Chanel sunglasses.

14 of 52

SELENA GOMEZ

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Ian West/PA Photos/Abaca

Across the pond, heads to Cheryl Cole and de Grisogono’s Promise ring launch looking sophisticated in a chic black turtleneck, bow-accented sequin leggings, a Lauren Merkin clutch and an Anna Sheffield for LOFT necklace.

15 of 52

RACHEL BILSON

RACHEL BILSON
Daigoron/Splash News Online

Effortlessly transitioning from denim darling to red carpet siren, emphasizes her curves in a slinky Roberto Cavalli animal print gown at the brand’s 40th anniversary fête in Paris.

16 of 52

HEIDI KLUM

HEIDI KLUM
Splash News Online

She must have champagne wishes! The nearly flashes navel in a daring flesh-colored Cavalli confection at the designer’s bash in Paris.

17 of 52

VANESSA HUDGENS

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Michael Williams/StarTraks

gets Seductive at the launch for a GUESS fragrance by the same name in a mini LBD by GUESS by Marciano, on-trend over-the-knee boots and a leopard clutch in Hollywood.

18 of 52

TYRA BANKS

TYRA BANKS
INF

Also in Paris, takes a walk on the wild side in a printed harem jumper and modern tuxedo jacket – all by Roberto Cavalli.

19 of 52

CATHERINE ZETA-JONES

CATHERINE ZETA-JONES
Eamonn McCormack/WireImage

The upstages the red carpet in a scarlet cap-sleeved Reem Acra gown with a dramatic train at the Welcome to Wales press event in the U.K.

20 of 52

TAYLOR SWIFT

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Splash News Online

The continues her European style tour, donning a jewel encrusted Roberto Cavalli mini with metallic stacked heels and a red pout at the designer’s Parisian celebration.

21 of 52

DEMI LOVATO

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Crollalanza/Rex

makes the Autumn Party benefiting the Children’s Institute at L.A.’s London Hotel a fringe-worthy event, dressed up in a fashion-forward LBD with embroidered sheer paneling and accessorizing with chains and the ultimate smoky-eye.

22 of 52

AMERICA FERRERA

AMERICA FERRERA
Paul Morigi/WireImage

, the beautiful! The actress dons a slinky two-tone sheath, Melinda Maria earrings, a David Yurman cuff and peeptoe pumps at the 24th Annual Hispanic Heritage Awards in Washington, D.C.

23 of 52

CAMERON DIAZ

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UPI/Keizo Mori/Landov

Pairing a chic black turtleneck dress with pink-ribbon-wrapped pumps, the stands tall at the Tokyo premiere of Knight and Day.

24 of 52

TAYLOR SWIFT

TAYLOR SWIFT
Bauer-Griffin

The gets spotted on the streets of Milan – and who could miss her signature style as she leaves her hotel wearing a ladylike Aryn K. polka-dot dress and two-tone oxfords?

25 of 52

RIHANNA

RIHANNA
Ahmad Elatab-SaleemElatab/Splash

Topping her striped mini with a jacket matched to her red-hot waves, the takes a stylish stroll through New York’s SoHo neighborhood.

26 of 52

JESSICA ALBA

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Nicepic/Meet The Famous

puts her own spin on casual, teaming up a micro-print Aqua minidress with a long cardigan and peep-toe booties in Beverly Hills.

27 of 52

FERGIE

FERGIE
INF

Looking ready to beat the heat, layers on light-weight silk shorts and a printed blouse and adds a wide-brimmed hat and cut-out sandals while on tour in Mexico.

28 of 52

KYLIE MINOGUE

KYLIE MINOGUE
Neil Mockford/FilmMagic

The singer plays with proportions pairing a sheer, light blue blouse with baggy cerulean trousers with a fold-over waist for a performance at the BBC Maida Vale Studios in London.

29 of 52

HEIDI KLUM

HEIDI KLUM
ANG/Fame Pictures

The trades in gilded sex appeal for edgy separates in an all-black ensemble with colorful parachute sleeves while shopping at the Guerlain store in Paris.

30 of 52

NICOLE RICHIE

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Humberto Carreno/StarTraks

takes a page out of book, accessorizing an oversized canary yellow Winter Kate kimono with supersized half-tint Chanel sunglasses and House of Harlow booties while out and about in N.Y.C.

31 of 52

ASHLEY GREENE

ASHLEY GREENE
AKM Images

newest squeeze goes shopping in Beverly Hills, showing off some leg in itty-bitty Paige shorts, a sheer black cardigan and patent ballet flats.

32 of 52

KELLY OSBOURNE

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Michael Wright/WENN

The Dancing with the Stars cutie continues to flaunt her newly toned physique in a form-fitting Isabel Lu blush frock with ruched sleeves and a bib necklace for an appearance on Chelsea Lately.

33 of 52

HEIDI KLUM

HEIDI KLUM
Venturelli/WireImage

sparkles in a jewel encrusted Roberto Cavalli gown with cascading draping and a subtle fishtail at the amfAR gala in Milan, Italy.

34 of 52

MEGAN FOX

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INF

Also in Milan, the opts for ladylike elegance in a structured blazer and LBD by Armani with gray Brian Atwood platform pumps at the brand’s spring 2011 fashion show.

35 of 52

BLAKE LIVELY

BLAKE LIVELY
Humberto Carreno/StarTraks

A back-baring Elie Saab minidress and hot heels get the cameras flashing as the Gossip Girl heads to The Late Show with David Letterman in N.Y.C.

36 of 52

KATHERINE HEIGL

KATHERINE HEIGL
Humberto Carreno/StarTraks

Also visiting David Letterman, the newly platinum tempers the soggy N.Y.C. weather in a layered tank, chunky cable-knit sweater and dark jeans tucked into fold-over booties.

37 of 52

GOOD JEANS

GOOD JEANS
INF

Style star dresses up distressed denim with a chic blazer Monday while touring Milan, Italy, where she is in town for Fashion Week.

38 of 52

CLAIRE DANES

CLAIRE DANES
Amanda Schwab/StarTraks

is radiant at the opening night of the New York Musical Theatre Festival in a shimmering navy sheath and peep-toe pumps.

39 of 52

EVA LONGORIA PARKER

EVA LONGORIA PARKER
George Pimentel/WireImage

Bringing her fragrance to her fans, promotes her signature scent in a gunmetal Monique Lhuillier dress and classic jewels in Toronto.

40 of 52

MILEY CYRUS

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WENN

shows some skin in a peekabo crochet top, frayed denim shorts and cowboy boots while shopping on Melrose Avenues in L.A.

41 of 52

SIENNA MILLER

SIENNA MILLER
Planet/Most Wanted Pictures

Cozying up for fall in London, layers on warmth by topping her neutral shorts and blouse with a furry jacket as she dines out with boyfriend .

42 of 52

KERRY WASHINGTON

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Slaven Vlasic/Getty Images

The actress brings black-tie drama to the Metropolitan Opera gala opening of Das Rheingold in a hand-dyed lilac Marchesa gown with a criss-crossed bodice along with a stingray clutch from the brand.

43 of 52

JESSICA SIMPSON

JESSICA SIMPSON
Jamie McCarthy/WireImage

The heads to Friendswood, Texas to promote her new denim collection wearing black leggings topped with a tank and printed chiffon blouse. The

44 of 52

NICOLE RICHIE

NICOLE RICHIE
Picture Perfect/Rex USA

In a swirl of tulle and bows by Marchesa, makes an avant garde statement at the LACMA opening of “The Unmasking” exhibition.

45 of 52

JENNIFER GARNER

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Orchon/Retna

is pretty in pink at the 6th Annual Pink Party in Hollywood, donning a pink Stella McCartney shell topped with layers of pearls, cool white mini by McCartney and strappy pink platforms.

46 of 52

TAYLOR SWIFT

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Vittorio Zunino Celotto/Getty

Bellissima! The is the epitome of romance at Milan Fashion Week, posing in a soft white poet blouse, tiered ruffled skirt, textured tights and gray knee-high boots at the Roberto Cavalli show.

47 of 52

LEA MICHELE

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Michael Kovac/FilmMagic

Animal-lover and Glee star Lea Michele hits up the PETA 30th Anniversary Gala in Hollywood in a strapless cream Jose Duran gown with Jimmy Choo platforms and Tiffany & co. jewelry.

48 of 52

CHRISTINA AGUILERA

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Jon Kopaloff/FilmMagic

The celebrates the opening of the new Resnick Pavilion at the Los Angeles County Museum of Art (LACMA) in a blush Atelier Versace halter-gown with an embellished waist accent and a bejeweled clutch before performing for the crowd.

49 of 52

HAYDEN PANETTIERE

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Stiefler/Babirad/Sipa

makes her mark on Munich at the United People Charity Night in a body-conscious long-sleeved dress, Kara Ackerman Designs earrings, Kelly Locke clutch and peep-toe Brian Atwood platforms.

50 of 52

EVA MENDES

EVA MENDES
Veronica Summers/Splash News Online

The is red-hot in a flowing Lanvin gown and Casadei pumps at the PETA Humanitarian Awards in Hollywood.

51 of 52

SOPHIA BUSH

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Michael Kovac/FilmMagic

Giving fall the cold shoulder, Sophia heads to the PETA Humanitarian Awards in Hollywood in an asymmetrical Reem Acra minidress, platform pumps, Loree Rodkin jewelry and a petite Judith Leiber clutch.

52 of 52

OLIVIA WILDE

OLIVIA WILDE
Francis Specker/Landov

Also attending the LACMA Gala was House actress Olivia Wilde, who donned a princess-perfect, strapless Monique Lhuillier ballgown and Dana Rebecca Designs earrings with Jimmy Choo heels and clutch.

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