Style Set: The Week's Best Dressed

Everyone has something to celebrate during Fashion Week. Thursday night saw glittering parties of all sizes for both Target's collaboration with Peter Pilotto and the opening of the new Berluti store on New York's Madison Avenue.

Harley Viera Newton, Alexa Chung, and Dree Hemingway were all spotted at the Target bash, where guests were treated to a full buffet of British finger food like mini shepherd's pies, scotch eggs, and scones.

Meanwhile, uptown, Berluti hosted the opening of its Madison Avenue store with DJ Mia Moretti, stylist June Ambrose, and models Natalia Vodianova and Sessilee Lopez.

Earlier in the week, another group of models celebrated amfAR's New York Gala. Across the pond, Erin O'Connor showed off her baby bump at a party hosted by InStyle. A look at all those women — and what they wore — here in the gallery.

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Dree Hemingway with designers Peter Pilotto and Christopher De Vos at Target's party for its Peter Pilotto collaboration.

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Alexa Chung at Target's party for its Peter Pilotto collaboration.

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Harley Viera Newton at Target's party for its Peter Pilotto collaboration.

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Leigh Lezark at Made's New York Fashion Week party.

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Sessilee Lopez and June Ambrose at Berluti's Madison Avenue store opening.

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Lindsay Ellingson at Berluti's Madison Avenue store opening.

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Mia Moretti at Berluti's Madison Avenue store opening.

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Giovanna Battaglia at Berluti's Madison Avenue store opening.

Getty | Dimitrios Kambouris

Coco Rocha at amfAR's New York Gala.

Getty | Jamie McCarthy

Behati Prinsloo at amfAR's New York Gala.

Getty | Mike Coppola

Elettra Wiedemann, wearing Ana Khouri, at amfAR's New York Gala.

Getty | Michael Loccisano

Karlie Kloss, wearing Alexander Wang, at amfAR's New York Gala.

Getty | Gilbert Carrasquillo

Lily Aldridge, wearing Rosie Assoulin, at amfAR's New York Gala.

Getty | Gilbert Carrasquillo

Karolina Kurkova at amfAR's New York Gala.

Getty | Dimitrios Kambouris

Crystal Renn, wearing Gabriela Cadena, at amfAR's New York Gala.

Getty | Michael Loccisano

Kiara Kabukuru at amfAR's New York Gala.

Getty | Mike Coppola

Ginta Lapina at amfAR's New York Gala.

Getty | Rabbani and Solimene Photography

Alek Wek at amfAR's New York Gala.

Getty | Larry Busacca

Selita Ebanks, wearing Gabriela Cadena, at amfAR's New York Gala.

Getty | Frazer Harrison

Lindsay Ellingson, wearing Wes Gordon, at amfAR's New York Gala.

Getty | Larry Busacca

Shanina Shaik at amfAR's New York Gala.

Getty | Larry Busacca

Grace Jones performing at amfAR's New York Gala.

Getty | Michael Loccisano

Grace Coddington and Peter Lindbergh at amfAR's New York Gala.

Getty | Kevin Tachman

Erin Heatherton, wearing Kaufman Franco, at amfAR's New York Gala.

Getty | Gilbert Carrasquillo

Donna Karan at amfAR's New York Gala.

Getty | Gilbert Carrasquillo

Ireland Baldwin, wearing Gabriela Cadena, at amfAR's New York Gala.

Getty | Gilbert Carrasquillo

Arizona Muse at amfAR's New York Gala.

Getty | Gilbert Carrasquillo

Jessica Hart, wearing Louis Vuitton, at amfAR's New York Gala.

Getty | Gilbert Carrasquillo

Daria Strokous at amfAR's New York Gala.

Billy Farrell Agency | Neil Rasmus/BFAnyc.com

Models Sean O'Pry and Garrett Neff at Details' March 2014 cover party.

Billy Farrell Agency | Billy Farrell/BFAnyc.com

Alice Smith and Ariel Foxman at InStyle's Fashion Week kickoff party.

Billy Farrell Agency | Will Ragozzino/BFAnyc.com

Manolo Blahnik at a meet and greet hosted by Barneys New York in New York.

Billy Farrell Agency | Dean Neville/BFAnyc.com

Harley Viera Newton at her party with Target in New York.

Billy Farrell Agency | Dean Neville/BFAnyc.com

Geordon Nicol and Leigh Lezark at Harley Viera Newton's party with Target in New York.

Getty | David M. Benett

Erin O'Connor, wearing Jenny Packham, at InStyle's Best of British Talent party in London.

Getty | David M. Benett

Alice Temperley at InStyle's Best of British Talent celebration in London.

Getty | Mina Magda/BFAnyc.com

Garance Doré at the Maison Jules Spring 2014 presentation.

Billy Farrell Agency | Aleks Kocev/BFAnyc.com

Leandra Medine at LXR & Co.'s flagship store opening in New York.

Billy Farrell Agency | Aleks Kocev/BFAnyc.com

Hannah Bronfman at LXR & Co.'s flagship store opening in New York.

Billy Farrell Agency | Donato Sardella

Jessica Joffe and Irene Neuwirth at Barneys' cocktail party celebrating the launch of Neuwirth's new fragrance in Venice, CA.

Billy Farrell Agency | Donato Sardella

Cameron Silver at Barneys' cocktail party for Irene Neuwirth's new fragrance in Venice, CA.

Getty | Michael Stewart

Josephine Skriver and Sadie Newman at Modelinia's pre-Fashion Week dinner in New York.

Getty | Michael Stewart

Sara Sampaio at Modelinia's pre-Fashion Week dinner in New York.

Getty | Cindy Ord

Linda Fargo and Ken Downing at Michael Bastian's Fall 2014 show.

Getty | Dimitrios Kambouris

Miranda Kerr in Jenni Kayne at the launch of the new ShopStyle campaign.

Getty | Astrid Stawiarz

Prabal Gurung at the VIP kickoff for Jeffrey Fashion Cares.

Getty | Andrew Toth

Candice Swanepoel in Robert Rodriguez and Karlie Kloss in Talbot Runhof at Victoria's Secret's Bombshell Day celebration.

Getty | Marc Piasecki

Carine Roitfeld spotted on the streets of Paris.

Billy Farrell Agency | David X Prutting/BFAnyc.com

Genevieve Jones at Bulgari's amfAR breakfast.

Getty | Vittorio Zunino Celotto

Eva Herzigova at a Project Runway photocall in Italy.

Billy Farrell Agency | Matteo Prandoni/BFAnyc.com

Jessica White at IMG's Super Bowl afterparty.

Billy Farrell Agency | Matteo Prandoni/BFAnyc.com

Solange Knowles at the Playboy Super Bowl party.

Billy Farrell Agency | Madison McGaw/BFAnyc.com

Tyson Beckford at Hennessy VS presents Never Stop. Never Settle.

Getty | Craig Barritt

Kate Upton at the GQ Super Bowl party.

Getty | Gregg DeGuire

Brie Larson at the LA premiere of The Lego Movie.

Getty | Angela Weiss

Jena Malone at an LA screening of The Wait.

Getty | Angela Weiss

Chloë Sevigny in Rodarte at an LA screening of The Wait.

Billy Farrell Agency | Matteo Prandoni/BFAnyc.com

Giovanna Battaglia at the opening night performance of Queen of the Night.