Alexa Chung
Alexa ChungChung, a model and contributing Vogue editor, wore a polka-dot Chanel dress, adding a fun element to the black-tie event. The above the knee, strapless dress was cute and flirty, and the star's loose, low pony was a chic, laidback option. Sky-high PVC heels and a cute clutch round out the sophisticated, cool look. [Photo: Alexa Chung via]