With most girl groups , there is always one singer who eventually outshines the rest (think: Diana Ross of The Supremes, Victoria Beckham of The Spice Girls, Coko of SWV and Cheryl Cole of Girls Aloud). But in the case of '90s R&B group Destiny's Child , Beyonc was clearly groomed for the solo spotlight while still sharing the stage (and carefully coordinated Miss Tina costumes).

In 2003, the Houston native released her debut solo album and made us fall crazy-in-love with her southern twang, sexy dance moves and stunning vocals. And it didn't take long for everyone to recognize that Beyonc was a whole lotta woman, as she showed off her curvy figure in skin-tight, cleavage-baring numbers and sparkling jewels. Not even pregnancy could stop the "I Was Here" singer from taking to the New York City streets in fashion-forward maternity wear (we can't wait to see inside of baby Blue Ivy's closet). And can we discuss her banging post-baby body? In one word, it's hot.

As Mrs. Jay-Z 's celebrates her 31st birthday on Tuesday (September 4th), we're taking a look back at the multi-hyphenate star's style over the years. Vote on all her looks in the slideshow below.

Meanwhile, check out Beyonce's hair transformation .

Flip through our many other Style Evolutions .

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