When I think of a woman with signature style, an image of Alexa Chung — dressed head-to-toe in quirky, British-chic — instantly pops into my head. Since today is the style-savvy and Madewell collaborator's 27th birthday, we're celebrating with a tribute to her looks we love. Miniskirts and short shorts paired with jackets and prim cover-ups, ladylike dresses and lots of Mulberry — click through for a style salute to the birthday girl!