caption: Slide 1 of 30: <PERSON>'s beauty transformation over the years has been almost as impressive to watch as her dominance on the tennis courts. Although she's always been full of style and personality (both on and off the court), her style has evolved as popular culture has, too. Looking back at her hair and makeup looks is like going through old photos of your very own '00s if you came of age around the same time: there's the bold but not exactly timeless colored makeup, some excessive but extremely fun glitter, and, eventually, a settled, neutral palette. Get inspired by <PERSON>'s beauty looks over the years with our gallery of her most memorable beauty choices so far.