08/29/2012 08:46 am ET Updated Oct 11, 2012

US Open Style Moments: Agassi's Mullet, Venus' Beads And More (PHOTOS)

The US Open Tennis Championship kicked off this Monday in New York, and of all the Grand Slams, this one is our favorite. Why? Because style-wise, anything goes.

Unlike Wimbledon, which enforces a strict (mostly) white dress code, the stateside tournament allows players to cut loose in the fashion department. From Arthur Ashes' Buddy Holly-style glasses to Andre Agassi's late '80s bandana-mullet glory to Rafael Nadal's manpris in the mid-2000s, we've seen court style seriously evolve (or devolve? You be the judge). Venus and Serena Williams, who have worn everything from beaded braids, "sneaker boots" and chandelier earrings, are in a category all their own. But it's not just the athletes who are making style statements; courtside fans make watching the event that much more interesting. Case in point: Agassi's glamourous, back-in-the-day girlfriend Brooke Shields or the newsie hat-wearing Olsen twins.

We're highlighting a few of the US Open's many style moments (some good, some questionable) in the gallery below.

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US Open Style Moments