STYLE
09/12/2011 09:44 pm ET Updated Oct 11, 2012

Stella McCartney: Style Evolution (PHOTOS)

Stella McCartney, daughter of former Beatle Paul, was born into rock royalty. But Stella, who turns 40 today, has defined fashion royalty in her own right, thanks to her wonderfully wearable (and sustainable) line.

The Central Saint Martins grad interned for Christian Lacroix when she was just 15, and served as Chloé's creative director before launching her eponymous label -- beloved by the likes of Kate Moss, Kate Hudson and Gwyneth Paltrow.

In honor of the designer's big birthday, we're taking a closer look at her personal style throughout the years. Stella favors comfy-chic ensembles, such as expertly draped tunics with leggings, oversize trenches and jeans paired with statement toppers. And of course, she's also rocked some bold red-carpet frocks.

Tell us, which look is your favorite?

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