09/10/2012 04:37 pm ET Updated Oct 02, 2012

Coco Rocha, Zac Posen's Signature Model, Turns 24 Just Hours After She Walks The Runway (PHOTOS)

On Sunday night, model Coco Rocha hit the runway during New York Fashion Week to walk in her close friend and designer Zac Posen's spring 2013 show, alongside Naomi Campbell, Karolina Kurkova and more.

As if her momentous runway appearance wasn't enough to celebrate, Rocha turned 24 years old just a few hours later. To celebrate the model's birthday on today (September 10th), we're taking a look back at how her style has changed over the years. Which is your favorite look? Vote in the slideshow below.

Flip through our many other Style Evolutions.

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