Happy Birthday, Serena Williams! See Pictures of the Tennis Pro’s Best Booty Moments

Serena Williams plays football on the beach in Miami
 Pichichi / Splash News

Happy Birthday, Serena Williams!

The champion tennis pro, fashion designer, and owner of one of the best bottoms on the planet, turns 33 on Friday, Sept. 26. She’s won a record number of titles from the US Open to Wimbledon and inspires women to live a fit lifestyle. On top of all that, she has a super-toned derriere. Here are her best squat-inspiring looks of 2014.

Williams took to the beach for some R&R on May 31. She feted the relaxing occasion in a racy animal print one-piece swimsuit, while keeping her blonde locks loose and wild.

Serena Williams - Vanity Fair Oscar Party

Sheer elegance! Williams walked the red carpet for an Oscars afterparty in March 2014, wearing a curve-hugging lace gown by Michael Costello.

Serena Williams - Cricket
Graham Denholm/Getty Images

In January 2014, she flaunted her derriere in a tiny floral jean jumpsuit as big sis Venus cheered on in the background.

Serena Williams - Letterman
Taylor Hill/FilmMagic

Williams wore a body-conscious pencil skirt paired with a black crop top to host a tennis match against David Letterman in New York City on Aug. 20.

Serena Williams - Tennis
Michael Dodge/Getty Images

Score! Serena Williams rocked the Australian Open Previews in January 2014 wearing a red workout top, black tights, and white sneakers.

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