Find out who got Meghan Markle & Kate Middleton on the dance floor at royal wedding reception (Exclusive)

Cocktails, fireworks and drinking games!

Prince Harry and Meghan Markle’s wedding reception was one big party and ET got the scoop on what went on behind closed doors, who spun the tunes that got everyone on their feet and which Hollywood hunk summoned Meghan and Kate Middleton to the dance floor.

Around 200 guests let loose at Frogmore House on Saturday evening, where royal expert Katie Nicholl says lucky invitees were told to arrive in their dancing shoes and expect endless champagne.

Queen Elizabeth and Prince Philip were not at the exclusive shindig, which was instead hosted by Prince Charles, who greeted guests on arrival alongside his wife, Camilla, Prince William and Kate.  

Once inside, the fun began!

“Drinks were served, [including] a cocktail, When Harry met Meghan, which was apparently a rum and ginger infused cocktail,” Nicholl says. “Soho House helped with these inspired cocktails and then a sit-down three-course meal, washed down with vintage champagne. After that, and after those speeches, was when the celebrity guests [and] the rest of Harry's closest family and friends could actually let their hair down, dance and enjoy the very special part of the day that they had been planning for a long time.”

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WINDSOR, UNITED KINGDOM - MAY 19: Duchess of Sussex and Prince Harry, Duke of Sussex wave as they leave Windsor Castle after their wedding to attend an evening reception at Frogmore House, hosted by the Prince of Wales on May 19, 2018 in Windsor, England. (Photo by Steve Parsons - WPA Pool/Getty Images)
Britain's Prince Harry, Duke of Sussex, (R) and Meghan Markle, Duchess of Sussex, (L) leave Windsor Castle in Windsor on May 19, 2018 after their wedding to attend an evening reception at Frogmore House. (Photo by Steve Parsons / POOL / AFP) (Photo credit should read STEVE PARSONS/AFP/Getty Images)
The newly married Britain's Prince Harry, Duke of Sussex, (R) and Meghan Markle, Duchess of Sussex, (L) leave Windsor Castle in Windsor on May 19, 2018 after their wedding to attend an evening reception at Frogmore House. (Photo by Steve Parsons / POOL / AFP) (Photo credit should read STEVE PARSONS/AFP/Getty Images)
The newly married Britain's Prince Harry, Duke of Sussex, (R) and Meghan Markle, Duchess of Sussex, (L) leave Windsor Castle in Windsor on May 19, 2018 after their wedding to attend an evening reception at Frogmore House. (Photo by Steve Parsons / POOL / AFP) (Photo credit should read STEVE PARSONS/AFP/Getty Images)
WINDSOR, UNITED KINGDOM - MAY 19: Prince Harry, Duke of Sussex helps his new bride the Duchess of Sussex into the car as they leave Windsor Castle after their wedding to attend an evening reception at Frogmore House, hosted by the Prince of Wales on May 19, 2018 in Windsor, England. (Photo by Steve Parsons - WPA Pool/Getty Images)
Britain's Prince Harry, Duke of Sussex, and Meghan Markle, Duchess of Sussex, leave Windsor Castle in Windsor on May 19, 2018 in an E-Type Jaguar after their wedding to attend an evening reception at Frogmore House. (Photo by Steve Parsons / POOL / AFP) (Photo credit should read STEVE PARSONS/AFP/Getty Images)
Britain's Prince Harry, Duke of Sussex, and Meghan Markle, Duchess of Sussex, leave Windsor Castle in Windsor on May 19, 2018 in an E-Type Jaguar after their wedding to attend an evening reception at Frogmore House. (Photo by Steve Parsons / POOL / AFP) (Photo credit should read STEVE PARSONS/AFP/Getty Images)
Britain's Prince Harry, Duke of Sussex, (R) and Meghan Markle, Duchess of Sussex, (L) leave Windsor Castle in Windsor on May 19, 2018 in an E-Type Jaguar after their wedding to attend an evening reception at Frogmore House. (Photo by Steve Parsons / POOL / AFP) (Photo credit should read STEVE PARSONS/AFP/Getty Images)
WINDSOR, ENGLAND - MAY 19: Prince Harrry, Duke of Sussex and Meghan, Duchess of Sussex depart Windsor Castle following their wedding on May 19, 2018 in Windsor, England. Prince Henry Charles Albert David of Wales marries Ms. Meghan Markle in a service at St George's Chapel inside the grounds of Windsor Castle. Among the guests were 2200 members of the public, the royal family and Ms. Markle's Mother Doria Ragland. (Photo by Samir Hussein/WireImage)
Britain's Prince Harry, Duke of Sussex, (L) opens the passenger door of an E-Type Jaguar car for his wife Meghan Markle, Duchess of Sussex, (R) as they leave Windsor Castle in Windsor on May 19, 2018 after their wedding to attend an evening reception at Frogmore House. (Photo by Steve Parsons / POOL / AFP) (Photo credit should read STEVE PARSONS/AFP/Getty Images)
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Indeed, with Harry having earned the nickname “Prince of Fun,” he and Meghan made sure guests would have a fabulous time and Meghan even brought America's favorite drinking game, beer pong, into the mix.

“This is a couple who wanted to put their own stamp on the wedding,” Nicholl says. “They wanted to have a bit of fun, play a few games and both of them seem to have a thing about drinking games. One of the games that they did play on Saturday night was called beer pong -- whereby pints of beer are lined up, you have to throw a ping pong ball into the pint of beer and if you get it in, the opposite team has to drink those pints. Apparently this was the source of much hilarity and it probably comes as no surprise that the best person at that game was Serena Williams.”

While the tennis pro aced beer pong, Nicholl says actor Idris Elba got behind the decks to spin some “soul classics,” which got everyone on the dance floor.

And, naturally there was a dance off!

“It might come as a surprise when it comes to a royal wedding, but there was an impromptu dance off,” Nicholl dishes. “James Corden managed to get Charles, William and Harry up on the dance floor before the night was out. And, George Clooney, who I think summoned both Meghan and Kate to a bit of a boogie on the dance floor. Quite unexpected when it comes to a royal wedding, but I think that was the happy marriage that we saw of royalty and Hollywood.”

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Celebrities at the royal wedding
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Celebrities at the royal wedding
Amal and George Clooney arrive at St George's Chapel at Windsor Castle for the wedding of Meghan Markle and Prince Harry.
WINDSOR, ENGLAND - MAY 19: Serena Williams and Alexis Ohanian attend the wedding of Prince Harry to Ms Meghan Markle at St George's Chapel, Windsor Castle on May 19, 2018 in Windsor, England. Prince Henry Charles Albert David of Wales marries Ms. Meghan Markle in a service at St George's Chapel inside the grounds of Windsor Castle. Among the guests were 2200 members of the public, the royal family and Ms. Markle's Mother Doria Ragland. (Photo by Shaun Botterill/Getty Images)
Serena Williams arrives at St George's Chapel at Windsor Castle for the wedding of Meghan Markle and Prince Harry.
WINDSOR, UNITED KINGDOM - MAY 19: Oprah Winfrey arrives at St George's Chapel at Windsor Castle before the wedding of Prince Harry to Meghan Markle on May 19, 2018 in Windsor, England. (Photo by Ian West - WPA Pool/Getty Images)
WINDSOR, UNITED KINGDOM - MAY 19: David and Victoria Beckham arrive at St George's Chapel, Windsor Castle for the wedding of Megan Markle and Prince Harry at St George's Chapel, Windsor Castle on May 19, 2018 in Windsor, England. (Photo by Andrew Milligan - WPA Pool/Getty Images)
WINDSOR, UNITED KINGDOM - MAY 19: David Beckham and Victoria Beckham arrive at St George's Chapel at Windsor Castle before the wedding of Prince Harry to Meghan Markle on May 19, 2018 in Windsor, England. (Photo by Ian West - WPA Pool/Getty Images)
WINDSOR, ENGLAND - MAY 19: Julia Carey and James Corden attend the wedding of Prince Harry to Ms Meghan Markle at St George's Chapel, Windsor Castle on May 19, 2018 in Windsor, England. Prince Henry Charles Albert David of Wales marries Ms. Meghan Markle in a service at St George's Chapel inside the grounds of Windsor Castle. Among the guests were 2200 members of the public, the royal family and Ms. Markle's Mother Doria Ragland. (Photo by Shaun Botterill/Getty Images)
David and Victoria Beckham (both right) talk with Sir Elton John (left) and David Furnish as they arrive in St George's Chapel at Windsor Castle for the wedding of Prince Harry and Meghan Markle.
British actor Idris Elba and Sabrina Dhowre arrive for the wedding ceremony of Britain's Prince Harry, Duke of Sussex and US actress Meghan Markle at St George's Chapel, Windsor Castle, in Windsor, on May 19, 2018. (Photo by Ian West / POOL / AFP) (Photo credit should read IAN WEST/AFP/Getty Images)
Patrick J. Adams and wife Troian Bellisario arrive at St George's Chapel at Windsor Castle for the wedding of Meghan Markle and Prince Harry.
WINDSOR, ENGLAND - MAY 19: Sofia Wellesley and James Blunt arrive at the wedding of Prince Harry to Ms Meghan Markle at St George's Chapel, Windsor Castle on May 19, 2018 in Windsor, England. (Photo by Chris Jackson/Getty Images)
WINDSOR, UNITED KINGDOM - MAY 19: James Blunt (right) and Sofia Wellesley arrive at St George's Chapel at Windsor Castle before the wedding of Prince Harry to Meghan Markle on May 19, 2018 in Windsor, England. (Photo by Gareth Fuller - WPA Pool/Getty Images)
WINDSOR, ENGLAND - MAY 19: (L-R)Abigail Spencer and Priyanka Chopra arrive at the wedding of Prince Harry to Ms Meghan Markle at St George's Chapel, Windsor Castle on May 19, 2018 in Windsor, England. (Photo by Chris Jackson/Getty Images)
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It was Clooney who Nicholl hears was one of the “last partygoers standing,” and as the dancing continued, ladies were supplied with slippers to change into for relief from their stilettos.

The glamorous affair concluded with a spectacular fireworks display, which Nicholl witnessed from Windsor town and described as a “riot of color.”

“Prince Harry loves fireworks!” Nicholl explains. “He really is a big kid, so one of the things that he really wanted was for the big night to end with a big bang. A huge fireworks display went off just before midnight, if you were in Windsor town, you could see up in the horizon. It must have been an incredible experience to have been there and seen such a wonderful display. It really did mark the close of a very special evening. Although, it continued for a few hours after that.”

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