Beyonce and Jay Z Have Date Night Watching Serena Williams at the U.S. Open: See the Pics!

Déjà Vu? After Beyonce and Jay Z came out in support of pal Serena Williams at Wimbeldon in July, the A-list couple stepped out at the U.S. Open in NYC on Thursday.

WATCH: Beyonce Literally Drops the Mic With Epic VMAs Performance -- Relive the Flawlessness!

The GRAMMY winners sat in the row behind Williams' family, cheering her on. Jay wore a black T-shirt with an American flag on it and Bey rocked a racy eggplant-colored bralette with a matching silk coat. She wore her hair half up with several silver hoop earrings going up the side of her left ear.

The pair were photographed talking, laughing, and clapping in the stands as they watched the match.

Williams squared off against Vania King, beating the American tennis pro 6 to 3.

Beyonce enlisted Williams to twerk in the video for her song "Sorry," back in April when her visual album, Lemonade, was released.

MORE: Serena Williams Shows Off Incredible Twerking Skills for Delta -- Watch!

"I've known Bey for a long time," Williams told WSJ magazine in June, adding that the dancing made her "really sore!"

On Sunday, Beyonce had a headline-making performance of a medley of songs from Lemonade at the 2016 MTV Video Music Awards. The singer took home eight trophies, including the coveted Video of the Year Award for "Formation."

Watch her VMAs performance below:

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