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Kate Hudson in Michael Kors Collection
The star attended a Watch Hunger Stop dinner hosted by her designer pal in a black leaf-embroidered bodysuit and ruffle skirt, first worn by Bella Hadid in Kors' spring 2018 fashion show.
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Serena Williams in Versace
Serena's Glamour Women of the Year tribute to Gigi Hadid was twofold: Not only did the tennis star declare that Gigi was "one of the few people on this planet I would leave my baby for," but she also chose the same gold baroque embroidered mini the model wore on the spring 2018 runway for the occasion.
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Tracee Ellis Ross in Prabal Gurung
Serena wasn't the only woman paying fashion homage to Gigi at Glamour's Women of the Year Awards: the Black-ish star wore the same red cutout midi the model wore in Gurung's spring 2018 show to the event.
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Allison Williams in Brandon Maxwell
The Get Out star kicked off awards season at the Governor's Awards in a dramatic black high-low ballgown first seen on Jourdan Dunn in the fall 2017 fashion show (which she topped off with some serious Neil Lane diamonds).
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Blake Lively in Chanel
Blink and you may have missed Blake in this houndstooth jumpsuit — after all, it was one of seven outfits she wore in just one day! But although the star didn't wear the look (first seen on Gigi Hadid in the label's fall 2017 runway show) very long, it made an impression thanks to its striking pattern and her fun accessories.
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Jennifer Garner in Michael Kors Collection
Jennifer generally keeps it classic with her red carpet choices, so a black gown wasn't out of the ordinary for the 5th Annual Save The Children Illumination gala. But we love how she changed it up with this fringe number, which was first modeled by Kendall Jenner on the designer's fall 2017 runway.
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Gigi Hadid in Brandon Maxwell
Sister showdown! Just days after Bella Hadid wore this shirting-inspired gown down the Brandon Maxwell runway, Gigi snagged it to wear to serve as the backdrop for a diamond choker she needed to sport for a party in Paris.
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Kirsten Dunst in Rodarte
It's only fitting that the Woodshock star wore Rodarte for the film's premiere (the label's designers, Kate and Laura Mulleavy, are also the directors). Dunst kept her look almost identical to the version that came down the fall/winter 2017 couture runway show — down to the shoes and the baby's breath accessories.
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Laura Dern in Proenza Schouler
The Big Little Lies actress won her Emmy in this floral, feathered number from the spring 2018 collection, which she made her own (and a bit more modest) by filling in the cutouts.
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Sarah Paulson in Carolina Herrera
"They showed it [on the runway] Monday and now I have it on my bod," Paulson said on the Emmys red carpet of her spring 2018 puff-sleeve design. In fact, the star and her stylist Karla Welch first spotted the dress on Eva Chen's Instagram story. "We saw if we could get it, and it came in and it was great!" Welch told PeopleStyle.
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Tracee Ellis Ross in Chanel Haute Couture
The Black-ish star chose this sequin-and-feather dress for the Emmys, after it first came down the spring 2017 runway on model Lineisy Montero. And this couture creation was no joke: It featured 170,000 crystal flowers, silver mirrors and glass beads that took 1,300 hours to attach, and a skirt with hand-painted white feathers and tulle pompoms that took 80 hours to create by hand.
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Alessandra Mastronardi in Chanel Haute Couture
The Master of None breakout has been front row at the fashion house's shows the past several seasons (most recently alongside her costar Aziz Ansari), so it was only a matter of time before she stepped out in one of Karl Lagerfeld's designs on the red carpet. Sure enough, she wore this pale pink off-the-shoulder dress to the Emmys — not too shabby for her first major awards show.
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Nicole Kidman in Zuhair Murad Couture
Nicole has had a particularly stellar style year, and with looks like this lace tea-length number, worn by Sara Sampaio during the fall 2017 couture show, it's easy to see why we named her PEOPLE's no. 1 best-dressed star of 2017.
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Cara Delevingne in Alexandre Vauthier
Before Cara wore this sparkly, plunging, high-slit gown to the Valerian and the City of a Thousand Planets premiere, she made sure the skirt had a bit more fabric than when Bella Hadid modeled it down the runway (and narrowly avoided a wardrobe malfunction!).
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Bella Hadid in Dior
The supermodel wore this sexy yet whimsical mini to celebrate Dior Beauty's latest mascara launch (she's a face of the brand), swapping the runway look's lace-up boots for elegant metallic sandals. Oh, and those straps? That's a backpack!
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Poppy Delevingne in Chanel
Family faceoff! Cara Delevingne wore this tweed suit for her return to the catwalk at the Metiers d'Art 2016/17 show. Older sister Poppy must have loved the look, because she paired the jacket with distressed boyfriend jeans and cap-toe pumps to an event for the label.
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Lily Collins in Chanel
The star put a vampy twist on the original look worn by model Edie Campbell by swapping the white slip for a black one (and showing it off, too).
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NICOLE KIDMAN IN OSCAR DE LA RENTA
This is an important dress for the Oscar de la Renta team, as it was the final look in the debut fashion show of new creative directors Laura Kim and Fernando Garcia. The designers chose only two fabulous women to wear it so far: Bella Hadid on the runway, and the fabulous Nicole Kidman to represent them at the 2017 CFDA Awards.
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BLAKE LIVELY IN OSCAR DE LA RENTA
Stars can't resist the new designers at Oscar de la Renta, Laura Kim and Fernando Garcia! Lively chose this draped citron dress from their debut lineup for the American Ballet Theatre Spring 2017 Gala.
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CANDICE SWANEPOEL IN PRABAL GURUNG
No red carpet is complete without a sheer dress! The model attended the 2017 Tony Awards in an altered version of this gown first worn by fellow Victoria's Secret Angel Josephine Skriver on the fall 2017 runway.
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VANESSA HUDGENS IN MOSCHINO
Hudgens hit the front row of Jeremy Scott’s resort fashion show for Moschino in L.A. wearing a highly embellished dress and matching bomber jacket that Miranda Kerr showcased on the runway during his resort fashion show the previous year.
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DIANE KRUGER IN JASON WU
Kruger loves wearing clothes from her designer BFF on the red carpet — and when they look this amazing on her, why wouldn't she? Unlike the version worn by model Lexi Boling on the fall 2017 runway, Kruger's gown featured an extra panel of rosettes, which may have helped add some coverage for the famously flashbulb-heavy Cannes red carpet.
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JENNIFER LOPEZ IN ELIE SAAB COUTURE
Often couture looks are reserved for major events like the Oscars or the Met Gala, but when you're J.Lo, you can show up in this blush tea-length dress from the spring 2017 collection to the NBC Upfronts to promote World of Dance — and naturally be the flyest person on the carpet.
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RIHANNA IN GUCCI
That thing when you see a model in a sparkly, full-body stocking underneath a distressed logo tank and cutoffs and say "Who could possibly wear that?" and then Rihanna rocks it in the desert at Coachella (and posts it on Instagram "cuz enough people ain't seen my outfit”).
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KENDALL JENNER IN ALEXANDRE VAUTHIER
You may have been confused by Jenner's choice to wear such a dramatic top (complete with a train!) with denim shorts, but surprise! That's actually precisely how the outfit was shown in the designer's fall 2017 fashion show.
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KRISTEN STEWART IN CHANEL
Just two weeks after this bandeau-and-suspender-dress look hit the Chanel Resort 2018 runway, Stewart wore it to a screening of 120 Beats Per Minute at Cannes (oh, the perks of being a face of the label!).
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SARA SAMPAIO IN BALMAIN
The supermodel chose this striped, spangly cold-shoulder dress for the Fashion for Relief runway show at Cannes — after it was originally worn by another Victoria’s Secret Angel, Stella Maxwell, on the spring 2017 runway.
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ZOË SALDANA IN ULYANA SURGEENKO
Saldana loves a fashion risk, which she proved in this structured midi dress with statement off-the-shoulder sleeves — first worn by supermodel Natalia Vodianova on the fall 2017 runway.
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Blake Lively in Marchesa
The star went festive, floral and fringe-y in this fall 2017 midi at the TIME 100 gala in N.Y.C.
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Selena Gomez in Oscar de la Renta
Although the metallic dress was shown with monochrome accessories on the runway, Selena switched up the look with ombré shoulder-duster earrings, champagne velvet Giuseppe Zanotti mules and a cobalt blue mani.
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Hailee Steinfeld in Elie Saab
Hailee ditched the ruffles, cape sleeves and (most of) the length for her mini, originally shown as a gown in the label's fall 2017 fashion show.
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Emma Watson in Oscar de la Renta
Watson wore the strapless black jumpsuit with her favorite silk Burberry pumps from the Beauty and the Beast press tour, simply switching up the placement of the gold flower pin from the fall 2017 runway version.
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LADY GAGA IN VERSACE
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ZENDAYA IN MICHAEL KORS COLLECTION
When veteran supermodel Carolyn Murphy, 42, wore this cutout dress on the spring 2017 runway, we were in awe of her rock-hard abs. And when Zendaya, 22 years her junior, wore it to the CFDA/Vogue Fashion Fund Awards, we were in awe of how gorgeously the dress suited both women.
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BLAKE LIVELY IN ELIE SAAB
Blake hit the People's Choice Awards in this beaded, fringe party of a minidress — the same one Victoria's Secret Angel Sara Sampaio rocked on the spring 2017 runway.
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LOTTIE MOSS IN FENDI
Both Gigi Hadid and Lottie dared to go sheer in this floral Fendi spring 2017 number, but Kate Moss' younger sis went above and beyond by (barely) covering up with petal pasties.
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JENNIFER LAWRENCE IN DIOR
J.Law continues her parade of gorgeous Dior looks in this semi-bridal, semi-sheer bustier gown from the spring 2017 collection.
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CHANEL IMAN IN VERA WANG
A one shoulder top over a long-sleeve white blouse, with a high-slit maxi skirt? It shouldn't work, but somehow both Kendall Jenner and fellow model Chanel pull it off.
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GIGI HADID IN JULIEN MACDONALD
The Super Natural Friend Group strikes twice! After Hailey Baldwin wore this sharp-shoulder shorts suit on the spring 2017 runway, Gigi chose it as one of her six looks for her 2016 American Music Awards hosting gig — with a slightly more TV-friendly neckline.
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JENNIFER LAWRENCE IN DIOR
J.Law paired her "L'Étoile" sweater with a sheer tulle skirt just like the spring 2017 runway look, making her a pioneer of the sweats-as-red-carpet-wear movement.
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GWEN STEFANI IN MARCHESA
It took a real fashion risk-taker to wear this cutout, ombré, ruffled Marchesa confection from Marchesa's spring 2017 collection. Luckily, Gwen was up for the challenge.
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ZOË SALDANA IN MONSE
It's a top! It's a dress! It's…Monse! Zoë wore the designer of the moment's sequin creation just as the designers intended (you'll even notice her hand in her pocket just so), swapping out only the shoes for her AMAs appearance.
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EMMA WATSON IN DIOR
Emma wore the bewitching, creature-covered spring 2017 dress with the same choker as the runway model, but her version added an illusion neckline for a little extra coverage.
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ALEXA CHUNG IN CHANEL
Bella Hadid made her Chanel runway debut in this 3D-flower-topped leather minidress during the house's Métiers d’Art 2015/16 show, and Alexa Chung sported it at a tribute to Tom Hanks presented by — who else? — Chanel.
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KATE HUDSON IN MICHAEL KORS
One thing Kate has in common with Kendall Jenner, who wore this floral dress down the spring 2017 runway? Both can rock the heck out of a plunging neckline.
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KATY PERRY IN MARCHESA
Katy may be a "Nasty Woman" for Hillary Clinton, but she cleans up nicely in this sweet spring 2017 Marchesa gown too.
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NICOLE KIDMAN IN RODARTE
Rodarte is known for its intricate, artistic designs, and Nicole is known for her daring yet elegant sense of style. It's a match made in fashion heaven, no?
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CHRISSY TEIGEN IN MICHAEL KORS
From one model to another! Chrissy wore this sheer, shimmering black midi — the same one that Bella Hadid wore (and yes, took a tumble in) on the spring 2017 catwalk.
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BELLA HADID IN DIOR
Who better than the design house's newest face to be the first to wear a design by creative director Maria Grazia Chiuri straight off the runway (at a Dior Beauty event, no less)?
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DAKOTA FANNING IN ELIE SAAB
Such a star! Dakota wore the same celestial mini that Hailey Baldwin wore in the spring 2017 show — minus one scarf, plus one skirt lining.
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JENNIFER LOPEZ IN BALMAIN
Did J.Lo's ridiculously body-baring birthday onesie look familiar? That's because Kendall Jenner wore the catsuit on the spring 2016 catwalk.
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CELINE DION IN VERSACE
When we first saw this daring Versace fall 2016 ensemble, Celine Dion was about the last person we expected to see wearing it. But now that the singer is working with stylist Law Roach, her fashion sense has never been better — or more fun.
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SIENNA MILLER IN DOLCE & GABBANA
We love this ornately patterned midi dress on Miller — although we admit we wish she had the companion phone case so she could fully embody the runway look.
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OLIVIA MUNN IN BALMAIN
When Gigi Hadid wears something on the runway, the pressure's on to bring it big time on the red carpet. Olivia did the spring 2016 ensemble serious justice right up until the moment she changed out of it in an airport bathroom.
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NICOLE KIDMAN IN ALEXANDER MCQUEEN
This fall 2016 celestial cape dress had "style icon" written all over it, so we were thrilled to see a fashion force like Nicole wear it at the Met Gala (with a slightly different headpiece)
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LORDE IN VALENTINO
Wait -- you didn't see this ballerina-esque gown from the fall 2016 runway and immediately imagine Lorde wearing it? (Yeah, neither did we.) But we were pleasantly surprised at the singer's Met Gala appearance – and loved that she gave it a twist with a sexy plunging neckline (and her keepsake cast).
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KIM KARDASHIAN IN BALMAIN
Kim and model Binx Walton have decidedly different body types, but the glitzy cold-shoulder gown from the label's fall 2016 collection flatters both.
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BELLA HADID IN GIVENCHY
Model vs. model! Joan Smalls ruled the runway in this dramatic strapless ballgown from the fashion house's spring 2016 show, and Bella chose the same look for the 2016 Met Gala – with the addition of some peep-toe stocking boots.
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JESSICA CHASTAIN IN ALTUZARRA
A big star just had to wear this sparkly sea-glass gown from the designer's fall 2016 collection. Jessica was the lucky leading lady – and the gown was so irresistible that week later, we even got a high-powered fashion faceoff out of it.
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KYLIE JENNER IN BALMAIN
Supermodel Doutzen Kroes wore this cerulean netted midi skirt on the spring 2016 runway – but the question remained: Which KarJenner sister would wear it IRL? In the end the winner was Kylie, who swapped the burnt orange suede bodysuit for a nude one (perhaps stolen from sister Kim?).