It was a dance that brought out the playfulness of the then 24-year-old People's Princess, already a mother-of-two with an unbelievable amount of weight on her shoulders.
When "Saturday Night Fever" star John Travolta took Princess Diana for a whirl around the dance floor, the blonde beauty for once looked her age.
"There really was something lovely and girlish about her and I felt that I had taken her back to her childhood, when she had probably watched 'Grease,'" shares Travolta, who played heartthrob Danny Zuko in the 1978 classic.
And though Diana had already had her fairytale wedding and found her prince, "for that moment I was her Prince Charming," says the 59-year-old.
Travolta knew that all eyes were on the pair as he took the young princess out onto the dance floor at a 1985 White House gala dinner hosted by President Reagan and his wife Nancy.
“I’d seen her dance with Charles beforehand so I knew that she was strong," says the Oscar nominee.
"But she looked like she was leading and because I knew that the world was watching I thought that I really needed to give her certainty that I knew what to do."
The actor explains how he put Diana at ease by guiding her through the steps. “I put my hand in the middle of her back, brought her hand down so that it wouldn’t be so high and gave her the confidence that we would do just fine,” he says.
Nearly 30 years after that dance and 16 years after her untimely death in a Paris car crash, Travolta still remembers the princess' unpretentious nature, despite her international fame.
"She was the real deal," he tells the Daily Telegraph. "And I think that was partly because she followed the rule that, 'It's OK to be important as long as everyone else is equally important.'"
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