Prince William and Kate Middleton saved the very best until last on their wedding day and had a killer final dance up their sleeves to floor their guests with. For the evening’s finale following their 2011 nuptials, the newlyweds had a special surprise stored up and unleashed it late on to bring the house down and draw an incredible day to a close. The couple had been together for almost a decade when they tied the knot in Westminster Abbey and the ceremony was watched by tens of millions of people around the world .

Everything was of course planned to perfection, but only a select few knew about the moves that were coming as they prepared to spend the rest of their lives together. Royal biographer Robert Jobson said one guest described the evening’s celebrations as “the most magical party imaginable" - and it concluded in an incredible way. "As they stood grinning and holding hands in the middle of the room, the opening bars of the song You're The One That I Want suddenly boomed out," he wrote for Mail+ .

"To their friends' delight, William and Catherine launched into the dance of the lead characters from the film, Grease, mouthing the words and pointing at each other. "It might have taken him eight years, but William had finally landed the one woman he truly wanted." It seems the newlyweds had perfected their act and a guest told PEOPLE back in 2011: “William and Kate were in the middle, giving it their all.

They really went for it. They were in the full party spiri.