Last night, Madewell celebrated the opening of its new storefront on Fifth Avenue in NYC. The store itself looked amazing — think light and airy – and so were the fashionable party goers. Madewell designer and cool cutie Alexa Chung attended the event wearing pieces from her upcoming collection for the brand, while Julia Restoin-Roitfeld made a debut in sexy all black. Stay tuned for our exclusive interview with Alexa coming soon, but for now, check out the slideshow to see who else attended the bash, plus a sneak peek of Madewell's new digs.

Photo courtesy of Kristen Somody Whalen and Madewell