By Jennifer Davis
Updated Nov 05, 2012 @ 10:10 am
Credit: Mike Marsland/Globe Photos; Gareth Davies/Getty Images

Happy birthday, Alexa Chung! The British model-turned-TV presenter, author, and fashion trendsetter turns 29 today. The "it" girl continues to make her mark in as one of fashion's freshest faces, from collaborating with Madewell and Maje to penning an upcoming style guide. In celebration of her last year in her 20s, click through the gallery to take a look at all of her changing looks.