Prince William, Kate Middleton, Beyonce, Jay Z, Twitter

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Prince William and Kate Middleton, please meet Queen B and Hov.

The Duke and Duchess of Cambridge were introduced to Hollywood royalty tonight during the Cleveland Cavaliers game against the Brooklyn Nets at Barclays Center. The royals were greeted with cheers and standing ovation as they entered the court to take their seats, and whaddya know? Beyoncé and Jay-Z were seated just across the way!

So clearly, it seemed only right that these four finally meet face to face.

"Bey and Jay got up out of their seats during the break before the fourth quarter and walked across the court to say hi," an eyewitness tells E! News. "Everyone was standing up and gawking. It's a mob scene around them."

Kate Middleton, Duchess of Cambridge, Prince William, Duke of Cambridge, Beyonce, Jay Z

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Prince William, Kate Middleton

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The source adds, "During the time-out, [Will and Kate] put them on the Jumbotron. Everyone cheered, but they seemed kind of shy. They smiled and waved. It was cute," and notes that William was "definitely explaining the game to her. He's pointing things out and she's nodding a lot."

William and his pregnant wife met NBA Commissioner Adam Silver and former player Dikemba Motumbo before the basketball game to celebrate the new community partnership between the Royal Foundation and the NBA.

During the pre-game photocall, Wills held the basketball in his hand and joked, "This is where I should be spinning it on my finger," and Kate countered by teasing her royal hubby, "You are going to pretend you can actually score."

Now, we just have to make sure Will and Kate meet LeBron James, aka King James, so all the royal can be properly acquainted.

—Reporting by Beth Sobol

Kate Middleton, Duchess of Cambridge, Prince William, Duke of Cambridge, Beyonce, Jay Z

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Duchess Catherine, Kate Middleton, Prince William, NBA Commisioner

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Prince William, Kate Middleton

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