Sensational Serena!

Serena Williams won her first singles gold medal at the London Olympics on Saturday after defeating Maria Sharapova -- and instantly celebrating by screaming and dancing (or "crip walking") on the court.

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With the victory, the 30-year-old tennis superstar made even more history in her sport -- becoming only the second woman to achieve a Golden Slam, winning all four tennis Grand Slam titles (the Australian, French and U.S. Opens plus Wimbledon) and an Olympic gold medal; she's also the very first player to nab a Golden Slam in both singles and doubles.

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Astoundingly, Steffi Graf won four Slam singles tournaments -- and a singles gold medal -- back in 1988, all in one year.

This article originally appeared on Serena Williams Wins Gold Medal, Defeats Maria Sharapova, Makes History