Last Night's Look: Love it or Leave it?

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KIM KARDASHIAN

Apparently no one invited to the pants party. The star instead opts for nothing but a double-breasted tux jacket and ankle-strap heels at a Palladium Collection by Jacob & Co. launch party in N.Y.C.

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DUCHESS CATHERINE

We wouldn’t want to be the luggage handler! She wears yet another pretty ensemble – this one Temperley London – for the Kuala Lumpur, Malaysia, stop on her royal tour of Southeast Asia.

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TAYLOR SWIFT

Appearing not to be too torn up over being away from Conor Kennedy, the is cheery in a sophisticated yellow floral sheath with orange pumps and House of Lavande Vintage earrings for an event in Rio de Janeiro.

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EMMA WATSON

As part of her mission to take risks with fashion, the chooses an asymmetrical Brood button-front mini and white pumps for the N.Y.C. Cinema Society screening of her flick The Perks of Being a Wallflower.

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DAKOTA FANNING

Another who proves she’s all grown-up when it comes to her fashion choices, Dakota wears a curve-hugging Stella McCartney sequin gown, Jimmy Choo sandals and a J/Hadley ring to the Now Is Good premiere in London.

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LINDSAY LOHAN

The dress code called for a headpiece, but attends the launch of new fragrance at N.Y.C.’s Guggenheim Museum without a topper, opting instead for nothing but a polka-dot halter and gold heels.

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JESSICA CHASTAIN

This sapphire Preen Line square-neckline sheath, worn with simple black pumps to a photocall for Broadway’s The Heiress, may be one of Jessica’s best dresses yet. But it’s hard to know for sure since the adorableness of Downton Abbey star Dan Stevens is so darn distracting.

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OLIVIA WILDE

It’s been a great week for LBDs, and Olivia keeps the streak going with a keyhole-neckline, leather-belted Alex Kramer halter, plus Pearl Collective gems, at the Revlon and Tribeca Film Institute screening of Half the Sky: Turning Oppression Into Opportunity in N.Y.C.

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AMERICA FERRERA

In a romantic, retro navy brocade dress with cap sleeves and a full skirt, accessorized with textured heels and Lorraine Schwartz gems, the is pure elegance at the N.Y.C. Half the Sky screening.

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LEA MICHELE

Perhaps reflecting her Glee character’s more grown-up N.Y.C. style, celebrates the season premiere in L.A. wearing a sophisticated, plunging black Versace dress with lace panels and rocking voluminous ombré hair. She adds Norman Silverman earrings and a ring, plus rings by Sethi Couture and Melinda Maria, for extra sparkle.

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KATE HUDSON

tough new also helps toast Glee’s upcoming season in L.A., wearing a relaxed Alexander McQueen suit (complete with on-trend trousers), Pomellato bracelets and Brian Atwood pumps.

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JESSICA ALBA

Self is honoring for doing good, but we’d like to give her a prize for looking good. She goes totally feminine with a gorgeous updo and flawless makeup, plus a bow-necked, printed Valentino dress and Casadei heels, at the magazine’s N.Y.C. awards.

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NICOLE RICHIE

Leave it to to convince us that blue velvet might not be so bad. In N.Y.C. to tout her new Macy’s Impulse line, the designer accents her swingy mini with peep-toe booties and dramatic kohl-rimmed eyes.

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FERGIE

The boxy cut and tuxedo lapels say menswear, but the super-short hem and those pointy pumps are all woman! Add sexy waves and vampy red nails and easily grabs all the attention at a Case-Mate event in N.Y.C.

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ZOË SALDANA

Perhaps Zoë saw that we named her black-and-sheer Prabal Gurung one of the most gorgeous gowns of the year, because she chooses a Stella McCartney dress with similar features for the L.A. premiere of The Book of Mormon.

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JENNA DEWAN-TATUM

Joining at the Women Doing Good awards in N.Y.C., the actress (and Fashion Week staple) looks heavenly in a sky-print powder blue halter with sexy draping, plus strappy sandals and Isharya earrings.

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MALIN AKERMAN

For her Book of Mormon L.A. premiere ensemble, the actress opts for a breezy multi-colored BCBG Max Azria maxi, white sandals and a slicked-back do.

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BRITNEY SPEARS

Though co-judge says is “quite mean” on The X Factor, she looks awfully sweet in this blue sheath featuring an oversize orange paisley print at the show’s premiere in L.A.

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DUCHESS CATHERINE

The stylish tour of Southeast Asia continues in Singapore with another hit: a belted, full-skirted suit and her trusty Stuart Weitzman wedges.

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AMY ADAMS

Maybe it’s the glam makeup, the deep-V striped Giambattista Valli dress with a leopard-print panel or the sexy Brian Atwood shoes, but we had to do a double-take before realizing this was Amy (at the N.Y.C. screening of The Master), a star who usually goes for sweet, simple and understated.

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DEMI LOVATO

X Factor ditches her spikes, leather and denim for a totally ladylike cap-sleeve dress, orange-red lips, Open Hearts by Jane Seymour jewelry and platform pumps at the show’s L.A. premiere.

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KERRY WASHINGTON

We’d love to hang out with Kerry, raid her closet and get all her skin tips – because maybe then we’d look as radiant as she does in her lace-embellished ivory Dior dress, worn with matching accessories and Le Vian jewelry to a Beverly Hills Paley Center event for her show Scandal.

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ALLISON WILLIAMS

Also at the N.Y.C. premiere of The Master, the Girls star goes for major impact with minimal styling, wearing nothing but a body-hugging red Stop Staring! dress and nude Casadei sandals.

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KRISTEN STEWART

Smoky eye makeup, a messy updo and an edgy outfit (an open white blouse, gray tank, black A.L.C. pants and killer Jimmy Choo heels) make the look like quite the bad girl at a New York screening of On the Road.

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KATE MIDDLETON

quite the modern princess – and she’s got a modern dress to match. Kate slips into a colorful Prabal Gurung creation, complete with a black clutch and matching pumps, while visiting Istana, Singapore, with as part of the Jubilee tour.

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EMMA WATSON

Leaving her minis in the closet, opts for pure romance in a beaded, pale yellow Giorgio Armani gown at the Perks of Being a Wallflower premiere in Hollywood.

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DEMI LOVATO

With just one day to go ‘til her show’s big premiere, the X Factor gets our vote at FOX’s Fall Eco-Casino Party in Culver City, Calif., thanks to her embellished nude sheath, black ankle-strap peep-toes, a coordinating Swarovski clutch and a ballerina bun.

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JESSICA CHASTAIN

She’s already shown that redheads can wear pink, and now Jessica proves that they can wear red, too. She dons a feminine frock and sky-high sandals for an event at the New York Times headquarters in N.Y.C.

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NINA DOBREV

Perhaps The Perks of Being a Wallflower should be renamed The Perks of Being a Bombshell because that’s exactly what Nina is in her red Reem Acra dress with lace detailing, black Rupert Sanderson sandals, Anita Ko earrings and a messy updo, worn for the movie’s Hollywood premiere.

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ZOOEY DESCHANEL

Nothing adorkable to see here, folks. Zooey sports a slightly sexier look than we’re used to seeing from her: an open-back black ruffled mini, matching pumps and a smoky eye at the FOX fiesta in Culver City, Calif.

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ELIZABETH OLSEN

The actress revealed that she’s been wearing Mary-Kate and Ashley’s hand-me-downs for years, but we’re guessing this gray-and-pink leather A-line Dior frock, worn with army green sandals, Joan Hornig earrings and rings by Melinda Maria and J/Hadley to the Liberal Arts screening in N.Y.C., is not one of them.

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MINDY KALING

Also at the FOX party, the hilarious actress rocks a graphic curve-hugging M Missoni dress teamed with nude satin sandals and a Swarovski clutch.

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NICOLE RICHIE

Message received: knows how to stylishly sport leather in any form. At Macy’s Glamorama in Los Angeles, she wows in a sheath with maroon and gold detailing (from her upcoming line for the store), a Misaki bracelet, metallic pumps and a box clutch.

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LAUREN CONRAD

The takes her topknot to the Tracy Reese show during New York Fashion Week wearing an emerald green Tracy Reese dress paired with a chain-link purse, Sydney Evan Jewels ring and simple black pumps.

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MIRANDA KERR

Miranda may be in Tokyo to model Samantha Thavasa handbags, but we highly doubt anyone is paying much attention to the purses considering the outfit she’s wearing: a pretty printed mini with gorgeous sandals.

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JESSICA CHASTAIN

This redhead is not afraid to wear pink! She once again offsets her fair complexion and fiery locks with a dress in the shade, adding neutral Tabitha Simmons shoes for the opening night of the play The Train Driver in New York.

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KATHARINE MCPHEE

Props to the Smash actress for working two tricky fall trends – a black peplum top and wide-leg trousers (both by Rebecca Taylor) – at the designer’s show in N.Y.C.

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SALMA HAYEK

Attending the Deauville American Film Festival in Deauville, France, surprises us by leaving her over-the-top gowns at home and wearing a sculptural black Stella McCartney number with an illusion neckline, plus Brian Atwood peep-toes, an aqua clutch and coordinating Graziela earrings.

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JULIANNE HOUGH

At the Lincoln Center tents in N.Y.C. for the Diane von Furstenberg fashion show, the could easily be mistaken for a native New Yorker thanks to her all-black ensemble – a conservative blouse, leather-trimmed shorts, pointy ankle-strap heels – plus one pop of color: an orange clutch.

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CAMILA MCCONAUGHEY

The newlywed lets her very stylishly swathed baby bump lead the way in a sexy, blue-striped LBD and peep-toes (both by INC International Concepts), plus Sydney Evan gems, at the Macy’s Glamorama event in Los Angeles.

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ASHLEE SIMPSON

Spending the day by the Wet Republic pool at the MGM Grand Hotel in Vegas, the embraces the last days of summer in a 6 Shore Road polka-dot jumpsuit, strappy sandals and sweet updo.

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NATASHA BEDINGFIELD

In a green dress with sheer paneling that seems to be suffering from multiple hemline disorder, the singer brings some drama to the Diana Vreeland: The Eye Has to Travel afterparty in New York.