Alexa Chung and Blake Lively celebrated Chanel's 80th anniversary of the 'Bijoux De Diamants' collection in New York last night.
The star-studded event was attended by the likes of Diane Kruger, Rose Byrne, Elle Fanning and January Jones, and unsurprisingly, the A-list were dressed to impress in, you guessed it, Chanel.
Alexa kept things cool in an embroidered silk dress, while Blake sparkled in a halter-neck dress with sequin embellished straps. Take a look below to see who was there and what they wore, and let us know which look you prefer in a comment below: