London's "It" girls are known for their wild outfits, but at Tuesday's Serpentine Gallery party in London, they opted for black en masse.
Cara Delevingne toasted the gallery in a long, black dress with a keyhole neckline, while Alexa Chung chose a strapless tea-length dress and flats. Lily Allen, fresh off a performance at Glastonbury, selected a black dress that was all business in the front and party in the back -- no, really, the entire back of the dress was just some slinky fringe.
Models Rachel Hunter and Sophie Dahl also opted for black frocks that showed off their babe-like curves, though our favorite noir ensemble might be Bonnie Wright's chic and youthful pantsuit.
But, lo, there was some color to be found. Keira Knightley sparkled in Chanel, Edie Campbell and Lily Cole got metallic, Suki Waterhouse cuddled with Bradley Cooper in blush, and Naomi Campbell, not to be outdone by anyone, strutted in a shimmering red dress.
Oh, and Pharrell got a new hat. Don't worry, it's still as odd as the original.
See all the photos from the gallery's party in the slideshow below.