Serena Williams Sings 'Under The Sea,' Slays Karaoke Set

What else is there to do as you prepare for a possible historic Grand Slam?

Sing karaoke, of course. 

Serena Williams took to the stage on Wednesday night with the confidence of a 21-time Grand Slam winner at the Delta Air Lines Open Mic Night event in New York City.

Belting out the Disney classic "Under The Sea," Williams proved the line, "you dream about going up there, but that is a big mistake," is so wrong.

Because nothing about her performance was a mistake. At all. 

As on the court, Williams simply did her thing -- in heels, no less. Do the dance on 'em, Serena: 

Heading into the U.S. Open, which begins Aug. 31, Williams is under pressure to win her 22nd Grand Slam and complete her historic summer winning streak . It would also make her the first player to complete a true Grand Slam since Steffi Graf accomplished the feat in 1988.

Given her record at the U.S. Open, her assured dance moves totally reflect how in control she is at Flushing Meadows. In 88 career matches there, she's dropped a total of 27 sets. And in her last three appearances at the Open, she's only lost two sets over 21 matches, according to ESPN .

If that was your career record at the U.S. Open, you'd be twirling and singing in the lead-up to the tournament too. 

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