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Leighton Meester joined Blake Lively on the set of "Gossip Girl" on Monday (October 1) in New York City.

The star wore a pretty red and purple star printed dress with a ruffled v-neck by Sonia by Sonia Rykiel paired with a black cardigan.

She also wore a trench coat by Carven paired with a maroon beret, a super cute maroon Bvlgari "Leoni" tote, and red studded platform pumps by Valentino.

During the break, Leighton kept her feet warm by wearing a pair of UGG "Bailey" button boots.

Buy It:

Sonia by Sonia Rykiel Ruffle V-Neck Star Print Dress at my-wardrobe

Carven Double Breasted Coat at Barneys New York

Valentino Rockstud Open Toe Pumps at Nordstrom

Valentino Rockstud Platform Peep Toe Pumps at Saks Fifth Avenue

UGG Australia Bailey Button Boots at shopbop.com

UGG Australia Womens Bailey Button at UGG Australia

Similar dresses:

ModCloth Accustomed to Classic Dress at ModCloth

American Rag Juniors Sleeveless Ruffled Printed Dress at Macy's

Similar bags:

Salvatore Ferragamo Chestnut Marisol Shoulder Bag at StyleBop

Mango Patent Tote at Mango

Similar hats:

American Apparel Unisex Wool Beret at American Apparel

Reiss Capri Wool Beret at Reiss

Eugenia Kim Mishka Bouclé Wool Beret at Net-A-Porter

Similar coat:

Forever 21 Belted Trench Coat at Forever 21

Express Classic Trench Coat at Express

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Yesterday (September 24), Leighton Meester showed up to film scenes for "Gossip Girl" in New York City.

She dressed up in a lovely floral coat from the Chloe Resort 2012 collection styled with gray tweed flared pants.

Leighton also added a cool prism-effect suede bag by Roger Vivier and blue suede lace up booties by Prada.

The actress' look is polished and sophisticated with a modern edge. I really like her tweed pants, which have a stylish appeal.

Buy It:

Same shoes in a different color:

Prada Multi Lace Booties at Nordstrom

Similar pants:

Express Luster Tweed Wide Waistband Editor Pants at Express

Basler Donegal Tweed Pants at Bloomingdale's

Burberry Stretch Tweed Flared Trousers at Burberry

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Leighton Meester was seen on the set of "Gossip Girl" on Tuesday night (August 28) in New York City.

She wore a cool printed peplum top paired with a matching printed skirt with a flared handkerchief hem both from the Peter Pilotto Fall 2012 collection.

Her vibrant printed ensemble was styled with a black short-sleeved jacket from the Louis Vuitton Resort 2009 collection and a black bag by Bvlgari.

She concluded her stylish look with a blue headband and black suede t-strap pumps by Roger Vivier.

Buy It:

Peter Pilotto Black and Violet Peplum Silk Top at StyleBop

Peter Pilotto Tiger Print Peplum Top at MATCHES

Peter Pilotto K Printed Crepe Skirt at Net-A-Porter

Peter Pilotto Tiger Print Waterfall Hemline Skirt at MATCHES

Peter Pilotto Printed Skirt at farfetch.com

Similar shoes:

Report Signature Ryerson T-Strap Pumps at shopbop.com

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Leighton Meester was photographed on the set of "Gossip Girl" Tuesday (August 28) in New York City.

She looked lovely wearing a bold rose printed dress by Lyn Devon paired with a yellow and ivory tweed coat by Dolce & Gabbana.

Leighton also added pretty statement earrings and a super lovely rose embroidered and pyramid studded bag by Valentino to her ensemble.

A pair of fuchsia suede pumps by Rupert Sanderson, lovely makeup, and a pretty hair style finalized her refined look.

Buy It:

Valentino Rock Stud Embroidered Frame Top Handle at LUISAVIAROMA

Valentino Garavani Rockstud Embroidered Frame Handbag at Forzieri

Same shoes in black:

Rupert Sanderson Suede Pumps at LUISAVIAROMA

Similar coat by Dolce & Gabbana in a different color:

Dolce & Gabbana Tweed Coat at Neiman Marcus

Dolce & Gabbana Metallic Button Tweed Coat at Nordstrom

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Leighton Meester was seen heading to the set of "Gossip Girl" in New York City on Thursday (August 23).

She wore a pair of super cute purple Minkpink "Slasher Flick" destroyed denim shorts teamed with a Pink Floyd printed tee.

A pretty headband by Dauphines of New York, a vibrant purple mini bag by Proenza Schouler, and comfortable sandals by Birkenstock completed her summer-appropriate look.

Buy It:

Dauphines of New York The J'Adore Headband at shopbop.com

Minkpink Slasher Flick Shorts in Lavender at Boutique to You

Proenza Schouler PS1 Large Chain Wallet in Purple Rain at Forward By Elyse Walker

Same shorts in different colors:

Minkpink Slasher Flick Shorts at Revolve Clothing

Minkpink Slasher Flick Black Waisted Shorts at Swell

Minkpink Slasher Flick Shorts in White at Boutique to You

Minkpink Slasher Flick Slashed Shorts at Revolve Clothing

Minkpink Slasher Flick Shorts at Revolve Clothing

Minkpink Slasher Flick Shorts in Denim at Singer22

Proenza Schouler PS1 Leather Wallet-On-Chain, Purple Rain at Bergdorf Goodman

Birkenstock Arizona Sandals (Women) at Nordstrom

Similar top:

Forever 21 Pink Floyd Top at Forever 21

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Leighton Meester sported a laid-back outfit while on the set of "Gossip Girl" in New York City on Friday (August 17).

She wore a gray and green striped top paired with a denim button down shirt and paint splattered cut off denim shorts by Blank NYC.

A super cute purple bag with an interior mirror by Proenza Schouler and vibrant turquoise flip flops by Havaianas wrapped up her look.

Buy It:

Proenza Schouler PS1 Leather Wallet-On-Chain, Purple Rain at Bergdorf Goodman

Proenza Schouler PS1 Large Chain Wallet in Purple Rain at Forward By Elyse Walker

Havaianas Turquoise Basic Slim Flip Flops at Lord & Taylor

Blank NYC Cut Off Shorts at Pink Mascara

Similar tops:

American Vintage Grey and Blue Striped Linen Top at StyleBop

Stripelicious Tank at Athleta

Forever 21 Denim Pocket Silhouette Shirt at Forever 21

ASOS Denim Boyfriend Shirt with Shadow Pocket at Asos

BDG Chambray Button-Down Tunic at Urban Outfitters

G-Star Chambray Denim Shirt at Asos

BDG Denim Western Shirt at Urban Outfitters

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Leighton Meester was spotted on the set of "Gossip Girl" in New York City on Friday (August 17).

She picked out an orange and black printed sleeveless dress with black trimmed teardrop-shaped keyholes, a tie at the neck, a skinny belt, and an asymmetric hem from the Jason Wu Pre-Fall 2012 collection.

Her floaty dress was styled with a caramel-cardigan by Giada Forte, a super cute zig-zag bag by Bvlgari x Isabella, and multi-colored sapphire pave drop earrings by M.C.L by Matthew Campbell Laurenza.

A simple ponytail and bright aqua-turquoise flip flops by Havaianas wrapped up her look.

Olivia Munn also wore the same dress, which was posted here.

Buy It:

Jason Wu Vallonia Silk Print Dress at mytheresa

Jason Wu Tie-Front Flower Dress at Kirna Zabete

Similar cardigan:

Equipment Ella Cashmere Cardigan at Nordstrom

Havaianas Turquoise Basic Slim Flip-Flops at Lord & Taylor

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On Friday, Leighton Meester was busy filming scenes for "Gossip Girl" in New York City.

She sported a vibrant printed skirt by ICB styled with yellow short-sleeved top by Gucci.

Leighton also carried a light green snakeskin and lizard bag by Angel Jackson.

Her look was complete with a maroon headband by L. Erickson and an Alexis Bittar pendant necklace.

Buy It:

Similar top:

Rafaella Boatneck Cotton Tee (On Sale) at Lord & Taylor

Forever 21 Banded Slub Knit Tee at Forever 21

Similar skirt:

Blumarine Floral Print Full Skirt at farfetch.com

Similar shoes:

Pare Gabia VP TU Espadrille at La Garçonne

Soludos Miro Flat Espadrilles at shopbop.com

Tahari Caitlin Espadrille Flats at Macy's

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Leighton Meester was seen on the set of "Gossip Girl" in New York City on Friday (August 10).

She wore a stylish olive jacket paired with dark brown leggings and black Frye "Dorado" riding boots.

Leighton finished off her look with a woven hat, a printed scarf, and a maroon crocodile bag by Salvatore Ferragamo.

Buy It:

Frye Dorado Riding Boots at Nordstrom

Frye Dorado Riding Boots at shopbop.com

Frye Dorado Riding Boots at Dillard's

Similar bags by Salvatore Ferragamo:

Salvatore Ferragamo Marisol Lock Shoulder Bag at Saks Fifth Avenue

Salvatore Ferragamo Chestnut Marisol Shoulder Bag at StyleBop

Salvatore Ferragamo Marisol Shoulder Bag at Bloomingdale's

Similar scarf:

Matthew Williamson Python Print Gauze Scarf at Net-A-Porter

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Leighton Meester looked super lovely on the set of "Gossip Girl" on Thursday (August 2) in New York City.

She donned a Red Valentino fuchsia and black micro leopard printed silk georgette dress featuring a tie at the waist and a full pleated A-line skirt.

Leighton accented her dress with gorgeous flower earrings by Alexis Bittar and cool patterned Brian Atwood "Hamper" platform pumps.

A low bun and a cheerful smile finalized her look.

Buy It:

Red Valentino Micro Leopard Print Dress at Neiman Marcus

Alexis Bittar Floral Clip Earrings at Neiman Marcus

Alexis Bittar Floral Clip Earrings at Bergdorf Goodman

Same shoes in different colors:

Brian Atwood Hamper Elaphe Platform Pumps at Net-A-Porter

Brian Atwood Marilyn Multicolored Snakeskin Platform Pumps at Saks Fifth Avenue

Brian Atwood Marilyn Suede Platform Pumps at Saks Fifth Avenue

Brian Atwood Hamper Pumps at Nordstrom

Brian Atwood Hamper Pumps at Nordstrom

Brian Atwood Hamper Pumps at Nordstrom

Brian Atwood Hamper Suede Platform Pumps at Neiman Marcus

Brian Atwood Hamper Suede Platform Pumps at Bergdorf Goodman