The Duke and Duchess of Cambridge Kate Middleton and Prince William met the King and Queen of music industry Jay Z and Beyonce Monday night at an NBA basketball game in Brooklyn, New York. The two couples chatted with each other as they watched the Brooklyn Nets play the Cleveland Cavaliers at the Barclays stadium.

The crowd at the game could not contain their excitement when Prince William and Kate Middleton entered the stadium. The royal couple was greeted with cheers and a standing ovation, according to E! News. They met Queen Bey and Jay Z during the break. Jay Z shook hands with the couple and seemed to murmur something. Prince William also shook hands with Beyonce who reciprocated and nodded. Check out the exact moment here as uploaded by Barclays Center on a video sharing website Vine.

"Bey and Jay got up out of their seats during the break before the fourth quarter and walked across the court to say hi. Everyone was standing up and gawking. It's a mob scene around them," a source present at the game revealed to E! News. The tracks "God Save the Queen" and "Crazy In Love" were played in the background.

The source also revealed that the royal couple was put on a huge television screen during one of breaks and everyone cheered for them. "... but they seemed kind of shy. They smiled and waved. It was cute."

Jay Z was dressed in an all black attire while his diva wife Beyonce looked great in a printed white shirt and a black skirt. She had her long, straight hair flowing down to her waist. Meanwhile, Kate was dressed in a printed greyish-black coat and black pants. Check out her pictures in the slide show above.

During the entire time, Prince William took it on him to explain the game to his pregnant wife Kate by pointing out to the players and the Duchess nodded in return. Before the event, the royal couple also met NBA Commissioner Adam Silver, LeBron James and former player Dikemba Motumbo and got pictures clicked with them. Click on the slideshow above and see the video below.

Source: Youtube.com/Werter Tyuio

Britains Prince William, Duke of Cambridge L, and his wife Catherine, Duchess of Cambridge pose with LeBron James R backstage as they attend the Cleveland Cavaliers vs. Brooklyn Nets game at Barclays Center
The Duke and Duchess of Cambridge, Prince William and Kate Middleton are reportedly seeking for a new housekeeper to work for them at their home in Anmer Hall. It would be no simple task as the royal couple are looking for someone who are capable of doing house chores at a high standard.IN PHOTO: Britain's Prince William, Duke of Cambridge (L), and his wife Catherine, Duchess of Cambridge pose with LeBron James (R) backstage as they attend the Cleveland Cavaliers vs. Brooklyn Nets game at Barclays Center in the Brooklyn borough of New York, December 8, 2014. Reuters/Neilson Barnard
Cleveland Cavaliers forward LeBron James left talks with Jay Z right during the game against the Brooklyn Nets
Dec 8, 2014; Brooklyn, NY, USA; Cleveland Cavaliers forward LeBron James (left) talks with Jay Z (right) during the game against the Brooklyn Nets at Barclays Center. Reuters/Robert Deutsch-USA TOD
Cleveland Cavaliers forward LeBron James left talks with Jay Z right during the game against the Brooklyn Nets
Dec 8, 2014; Brooklyn, NY, USA; Cleveland Cavaliers forward LeBron James (left) talks with Jay Z (right) during the game against the Brooklyn Nets at Barclays Center. Reuters/Robert Deutsch-USA TOD
Prince William, Duke of Cambridge right and Catherine, Duchess of Cambridge center watch the game between the Brooklyn Nets and the Cleveland Cavaliers at Barclays Center.
Dec 8, 2014; Brooklyn, NY, USA; Prince William, Duke of Cambridge (right) and Catherine, Duchess of Cambridge (center) watch the game between the Brooklyn Nets and the Cleveland Cavaliers at Barclays Center. Reuters/Robert Deutsch-USA TOD
Barclays Court New York Silver