New York Fashion Week

As your source for essential New York Fashion Week coverage--check out the best backstage beauty from the past seven days plus our favourite S/S 13 collections--it only makes sense that we round out the week of nonstop runway shows and parties with a look at the best-dressed attendees. Inspirational ensembles were at every turn, as top editors, tastemakers, and A-list celebs hit the city streets, occupied front rows, and mingled at events in a covetable mix of designer pieces. Today's What They Wore pays homage to the week's top 12 looks, courtesy of Kate Bosworth, Solange Knowles, Taylor Tomasi Hill, and more, and we've got the inside scoop on all of their outfit details!

WHO: Kate Bosworth/Actress
WHAT: Photographed front row at the Altuzarra S/S 13 show last Saturday.
WEAR: Altuzarra top, skirt, and belt from the Resort 13 collection; JewelMint clutch

WHO: Karlie Kloss/Model
WHAT: Stopping by the Mercedes-Benz Star Lounge on Monday.
WEAR: Rag & Bone sweater; vintage shorts; AllSaints boots.

WHO: Rebecca Dayan/Actress
WHAT: Arriving at the launch of Carine Roitfeld's CR Fashion Book last Saturday.
WEAR: Reformation Flora Dress ($285); Reece Hudson clutch.

WHO: Alek Wek/Model
WHAT: Spotted at the Swarovski celebration of Crystal and Art at the Swarovski store last week.
WEAR: Sarah Aphrodite jacket and skirt; Helene Zubeldia earrings; Josephe shoes.

WHO: Taylor Tomasi Hill/Artistic Director for Moda Operandi
WHAT: Dashing out of the Prabal Gurung S/S 13 show last Saturday.
WEAR: Thom Browne coat; Equipment shirt; Mason Martin Margiela vest; Ksubi shorts; Gemma Redux cuff; Camila Skovgaard shoes.

WHO: Kelly Osbourne/Host of Fashion Police
WHAT: On her way to the Chris Benz S/S 13 presentation on Monday.
WEAR: Chris Benz dress from Resort 13 collection; Quay sunglasses; Casadei pumps.

WHO: Vanessa Traina/Stylist
WHAT: Toasting the launch of Carine Roitfeld's CR Fashion Book last Saturday.
WEAR: Balenciaga dress (S/S 11), Arena Classic Envelope Clutch ($945); Anemone Enamel and Resin Earrings ($765, 212.206.0872), and shoes (F/W 08).

WHO: Jenna Lyons/J. Crew Creative Director & Solange Knowles/DJ
WHAT: Posing together at the MADE for Alexander Wang after-party last Saturday.
WEAR: Jenna Lyons: J. Crew t-shirt; Celine skirt and shoes from the S/S 12 collection. Solange Knowles: Madewell denim jacket; Armani pants; Coach Legacy Leather Mini Mini Crossbody Bag ($128); Noir necklace; hat from store in South Africa.

WHO: Chloe Sevigny/Actress
WHAT: Feting Opening Ceremony's 10-year anniversary at Webster Hall on Sunday.
WEAR: Opening Ceremony Stanley Gathered Onesie ($425, available January 2013) in Marigold Smocked Gingham, Pop-Up Bag ($450, available January 2013) in Cobalt Perforated Calf, and Bumper Booties ($467, available in November).

WHO: Lily Kwong/Model
WHAT: Cooling off at the Boy. by Band of Outsiders S/S 13 show last Saturday.
WEAR: Zara top, Boy. Band of Outsiders Chino Pants with Rib ($370) in Dog Print; Celine sunglasses; Dannijo Viktor Necklace ($395); Eddie Borgo bracelet; fan from street vendor in Shanghai; 3.1 Phillip Lim shoes.

Photo of Alex Wek, courtesy of Wire Image; Photos of Chloe Sevigny, Rebecca Dayan, and Vanessa Traina, courtesy of Billy Farrell Agency; Photos of Taylor Tomasi Hill, Lily Kwong, Kate Bosworth, and Karlie Kloss, courtesy of Getty Images; Photo of Kelly Osbourne, courtesy of Splash News.