Princess Diana was a long-time dance lover, taking ballet and tap classes as a child, but after marrying the royal family she pursued her love of dance in a more formal way. Dancing with Diana in a new book, her former instructor Anne Allan has revealed many internal stories about her work with the late Royal, including when she was able to hide Diana behind the scenes during an amazing performance.

In his memoir, Alan wrote how he was approached in 1981 by a woman waiting for the Princess of Wales, who had just married Prince Charles on May 9 and 2 months ago, and asked if he would give the royal family a private dance lesson. Their lessons were conducted in secret, and Alan did not even tell his own husband at first, but the two grew closer over time, and Diana began confessing to her dance teacher about her marriage to Prince Charles.

Two years later, Alan joined iconic dancer and choreographer Wayne Sleep in his new company and she preferred to sneak a look from behind the scenes, with the only problem she could take a look at their new show, Dash, being that she didn't want to make it all up.

The dancer wrote that she was hesitant about the idea, "There was always a dangerous element if you are not experienced in how things worked" plus explains that it would be a "nightmare for security" with the princess there in the "pitch Black" area.

Alan also revealed that the show included a royal-themed dance and that he was worried that it would have offended the princess. The dancer "warned the princess that Wayne had created a very funny skit based on his son William and was wearing a babygrow" (it is an Englishman for the sleeper).

Fortunately, Diana thought it was hilarious. "She laughed and jumped out and said she had to watch it," Alan wrote.

The dance teacher approached to sleep and came up with a plan for the princess to attend the second half of the show. They feared that the media could be warned that "there would be an unnecessary risk of people seeing her in the rest area."

Fortunately, everything went according to plan, and Diana and her offer of protection were guided unnoticed behind the scenes and sat in the wings.

"Diana loved the whole behind-the-scenes atmosphere, and Wayne was a scoundrel who occasionally grinned from ear to ear, playing in front, not in the corner where she sat," Alan recalled.

And as for Prince William's skit, it was a hit. "The Baby Wales number was Diana's favorite," Alan wrote, "Wayne stated to me how much he loved her that she was able to laugh at herself and accept the intended humor.

The dancer pointed out that he was finally able to wipe Diana out of the back door, saying, "The press never knew.But the cast received quite a surprise when they found her behind the scenes.

The dancers didn't know Diana was there until they saw her "as she was preparing to make the entrance," Alan said, and "it was made for Act 2 of electricity.""Something tells me that they saw a shock in their faces and probably made Diana's night too.