best buy - blake

Patterned blanket sweater, Twelfth Street by Cynthia Vincent.

the serena also rises - hazel

Flat bow ribbon headband, Tarina Tarantino.

it-girl happened one night - serena

Leather-and-shearling cocoon coat and 'Holiday' distressed-metal-trimmed oversized cardigan, Catherine Malandrino. Lacquer jeggings, Paige Denim 'Verdugo.' Suede knee-high slouchy boots, Michael Kors. Top-handle bag, VBH.

golden globe awards - blake

Strapless gown, Nina Ricci.

the handmaiden's tale - serena

Robe, Natori 'Beijing Labyrinth.'

"country strong" beverly hills premiere - leighton

Textured ruffled floral-print dress, Christian Dior spring 2011. Ankle-strap peep-toe wedge sandals, Pierre Hardy. Jewels, Cathy Waterman.

the townie - serena

Sequined miniskirt, Haute Hippie.

gaslit - serena

Shawl-collar oversize cardigan, VPL 'Convultion.' Cowl-neck printed silk top, Barneys New York 'Maggie Ward.'

on the set - blake

Snap denim jacket, Current/Elliott. Stretch corduroy skinny riding pants, Vince. Studded buckle boots, CO-OP Barneys New York. Printed tote bag, Gucci 'Hysteria.' Challis scarf, Burberry 'Mega Check.'

the witches of bushwick - blair

Gilded sunflower cap-sleeved dress, Marc Jacobs.

the townie - juliet

Striped long-sleeved double-layered sweater dress, A.L.C. Opaque tights, Hue. Slouchy stiletto boots, Manolo Blahnik 'Ellefac.' Camouflage satchel, Be & D 'Barclay.'

pictured here with blair waldorf

the townie - serena

Metallic-thread long-sleeved T-shirt, Salvatore Ferragamo. Skinny pants, Vince. Over-the-knee boots, Robert del Carlo. Statement necklace, Oscar de la Renta. Jeweled rings, Low Luv.

the townie - blair

Printed button-up blouse, Dries von Noten. Skirt with contrasting waistband, Ulla Johnson 'Solange.' Lace fishnet tights, Hue. Pendant necklace, Alex Woo 'Princess Bow.'

dior boutique reopening party - leighton

Fur hoodie, dress and ring, Dior. Leather boots, Alaïa.

footwear news achievement awards - blake

Short-sleeved metallic hand-draped gazar dress and lambskin belt, Prabal Gurung fall 2010. Sheer glitter booties, Christian Louboutin for Marchesa.

gotham independent film awards - leighton

Suit, Thom Browne. Pumps, Salvatore Ferragamo. Jewelry, Bulgari.

on the set - blake

Military coat, Smythe. Quilted chain-strap tote bag, Chanel fall 2010.

herbal essences promotion - leighton (HAIR)

Products: Herbal Essences Body Envy Shampoo, Hydralicious Self-Targeting Conditioner, Body Envy Mousse and Set Me Up Extra Hold Hairspray.

How to get the look:

"Leighton appears to need a little boost of volume here and there, so it’s a good guess she would use a great body building shampoo like Herbal Essences Body Envy Shampoo.

If you go through as much heat styling as Leighton probably does, you’ll want to use their Herbal Essences Hydralicious Self-Targeting Conditioner, which sends moisture directly to the areas of your hair that need it without weighing hair down.

Use a dollop of Herbal Essences Body Envy Mousse in your damp hair, then blow hair dry using a round brush for amazing body.

Use hot rollers to set the style by placing large rollers at the crown and medium rollers rolled down and toward the feet below the jawline. Finish the style with Herbal Essences Set Me Up Extra Hold Hairspray and you’re date night ready with sexy, touchable hair that has great volume."

vogue & derek lam spring 2011 event - leighton

Fallon 'Sound Bite' cable tassle earrings

gaslit - juliet

Cutout-back cowl-neck three-quarter-length-sleeved dress, Cut 25 by Yigal Azroüel. Sheer tights, Hue. Zip pumps, Christian Louboutin 'Rolando.'

vera wang fragrance commercial - leighton

Ruffled mermaid gown, Vera Wang Bridal fall 2010.

realm boutique opening - blake

Oversized button-down shirt and sparkling high-waisted skirt, Vivienne Westwood. Leather booties, Chanel.

cfda/vogue fashion fund awards - blake

Knit crochet-and-feathers dress, Chanel spring 2011.

the witches of bushwick - blair

Dress, Bensoni. Bandeau bra, Marni. Necklace, Swarovski 'Miracle.'

pictured here with chuck bass

war at the roses - cynthia rowley

Embellished top, Cynthia Rowley spring 2011. Ostrich-feather layered skirt, Robert Rodriguez.

goodbye, columbia - serena

Dress, Louis Vuitton spring 2006. Pumps (not pictured), Brian Atwood 'Martay.' Cuff, Fallon 'Victoria Fair Isle.'

the undergraduate - serena

Silk robe, Ligne de Soie Vintage Collection 'Blancs de Noir.' Silk bustier slip, Victoria's Secret.

the undergraduate - blair

Single-layer silk kimono robe, Ligne de Soie Vintage Collection 'Chinois.'

double identity - serena

Lurex ruched metallic-striped dress, Isabel Marant spring 2010. Bag, Valentino 'Spotlight.'

on the set - leighton

Two-tone dress and classic box bag, Céline.

on the set - blake

Flower-printed dress, Hoss Intropia. Crinkled patent leather ballet flats, Lanvin. Shoulder clutch and 'Pixie' cuff, Chanel.

the witches of bushwick - vanessa

Military peacoat, Alice + Olivia 'Archer.' Gold hammered triple teardrop dangle earrings, Rich Rocks.

the witches of bushwick - jenny

Striped sequin oversize sweater, Alice + Olivia 'Evan.'

gaslit - jenny

Boyfriend coat, Zero + Maria Cornejo fall 2009. V-neck grandpa sweater, T by Alexander Wang. Bondage miniskirt, BCBG. Tights, Spanx. Over-the-knee tab boots, Tania Spinelli. Jewelry, Courtney Lee Collection 'Brittany' earrings, 'Barbara' lariat multi-chain knot necklace and 'Brittany' cuff.

juliet doesn't live here anymore - serena

Silk robe, Natori 'Josie.'

herbal essences promotion - leighton

Sleeveless pleated dress, Versus fall/winter 2010/11. Embellished sandals, Pierre Hardy.

2BHAPPY jewelry collection launch - blake

Fringed dress, Versace spring 2011. Patent-leather double-platform sandals, Christian Louboutin 'Amber.' Jewelry, Lorraine Schwartz.

the townie - serena

Blazer, Boy by Band of Outsiders. Extra-long crest-stripe slim tie, Brooks Brothers. Plaid high-waisted short-shorts, Joie 'Buella.' Oxfords, Rag & Bone 'Windsor.' Satchel, Be & D 'Genesis.' Ring, Ere by Repossi 'Twin.'

on the set - blake

Long double-breasted military coat, Smythe 'Cadet.' Large tote (not pictured), Chanel fall 2010.

the townie - blair

Plaid coat, Bensoni fall 2010 (look 1). Lace tights, Hue. Heels, Giuseppe Zanotti. Hat, Eugenia Kim.

pictured here with damien delgaard

gaslit - blair

Short-sleeved tartan dress, Barneys New York. Flower-and-pearl statement necklace (not pictured), Ann Taylor.

bonfire of the vanity - serena

(I couldn't find a picture, but Serena wears this dress in the scene when she's posing for Aaron in his studio)

Sequin-armed dress, See by Chloé.

goodbye, columbia - blair

Silk embroidered blazer, Smythe. Necklace, Tiffany 'Fleur de Lis.' Amethyst statement bracelet, Bounkit.

touch of eva - vanessa

Grecian-style halter-neck tropical-print gown, Matthew Williamson.

goodbye, columbia - juliet

Exotic skin bag, Analeena.

on the set - blake

Sharp-shouldered blazer, Smythe (in Cornflower Blue). Suede booties, Christian Louboutin 'Fifra.' Stud earrings, Eddie Borgo 'Bullseye Cone.'

the witches of bushwick - serena, jenny and juliet

Gown, Carolina Herrera fall 2010 (look 23).

juliet sharp wears this look as well.

double identity - lily

Malachite statement necklace, Siman Tu.

on the set/gossip girl set visit - leighton

Skinny cargo pants, AG Adriano Goldschmied 'The Slim' (in Fatigue Green).

pictured here with (above) ed westwick and (below) ed westwick and jessica szhor