'Gossip Girl' Fashion: Who Looked Best Last Night?

Valentine's Day on the Upper East Side got off to a rocky start on the 15th episode of Gossip Girl, "It-Girl Happened One Night," with Blair and Serena vowing to sit out the lovey-dovey holiday. Their plan? Antics and drama (wrapped up in GORGE Marchesa and Ralph Lauren gowns) instead! Ben lies to Serena about being hired as a cater waiter; Chuck gets tricked by Papa Thorpe into kicking Lily out of Bass Industries, plus he and Raina hit a rough patch; Damien stirred trouble by blackmailing Eric AGAIN. The only sweet Valentine's-y moment was witnessing the relationship between Dan and Blair start to bloom. Hmm, could be cute.

Blair Waldorf (Leighton Meester).
Photo: Giovanni Rufino/The CW

BLAIR WALDORF (LEIGHTON MEESTER)

+ Jacket: Balmain

+ Blouse: Diane von Furstenberg

+ Pants: Stella McCartney

+ Necklace: Noir

Blair Waldorf (Leighton Meester) and Serena Van Der Woodsen (Blake Lively).
Photo: Giovanni Rufino/The CW

BLAIR WALDORF (LEIGHTON MEESTER)

+ Cape: Joie

+ Blouse: Diane von Furstenberg

+ Skirt: Rodarte

+ Bag: LAI

SERENA VAN DER WOODSEN (BLAKE LIVELY)

+ Coat: Black fur-trimmed coat with gold shoulder lapels and gold buttons.

Blair Waldorf (Leighton Meester) and Serena Van Der Woodsen (Blake Lively).
Photo: Giovanni Rufino/The CW

BLAIR WALDORF (LEIGHTON MEESTER)

+ Robe: Floor-length flower print silk robe.

SERENA VAN DER WOODSEN (BLAKE LIVELY)

+ Cami/Shorts: Mai

+ Shirt: Nili Lotan

+ Socks: American Apparel

Blair Waldorf (Leighton Meester).
Photo: Giovanni Rufino/The CW

BLAIR WALDORF (LEIGHTON MEESTER)

+ Dress: Marchesa

+ Earrings: Swarovski

+ Bracelet: Blythe

Serena Van Der Woodsen (Blake Lively).
Photo: Giovanni Rufino/The CW

SERENA VAN DER WOODSEN (BLAKE LIVELY)

+ Dress: Ralph Lauren

+ Earrings: Badgley Mischka

SEE MORE GOSSIP GIRL FASHION PHOTOS HERE!!!

OTHER 'GOSSIP GIRL' EPISODES:

Season 4, Episode 14: 'Panic Roommate'

Season 4, Episode 13: 'Damien Darko'

Season 4, Episode 12: 'The Kids Are Not All Right'

Season 4, Episode 11: 'The Townie'

Season 4, Episode 10: 'Gaslit'

Season 4, Episode 9: 'The Witches Of Bushwick'

Season 4, Episode 8: 'Juliet Doesn't Live Here Anymore'

Season 4, Episode 7: 'War At The Roses'

Season 4, Episode 6: 'Easy J'

Season 4, Episode 5: 'Goodbye Columbia'

Season 4, Episode 4: 'Touch Of Eva'

Season 4, Episode 3: 'The Undergraduates'