On July 29, 1981, more than 750 million people from all over the world were glued to their television sets as Lady Diana Spencer married Charles, Prince of Wales in a traditional ceremony at St. Paul's Cathedral in front of 3500 guests.
It's been more than 35 years since the lavish event (they had 27 wedding cakes), and in all that time people have been curious about what the parts of the day not shown on camera were really like.
Luckily, British photographer Lord Patrick Lichfield was on hand during the big day and was given the exclusive honor of capturing the behind-the-scenes action. The best shots were presented to the Royal Family after the wedding, but the outtakes remained with Lichfield's assistant, who kept them private all these years.
In 2015, the rare photos were sold at an auction and now they're making the rounds online.
Are you ready to see the rest of the candid photos?
This is the moment Charles and Diana walked out onto the iconic Buckingham Palace balcony, as husband and wife, to greet the crowd.
The newlyweds and Prince Andrew (bending) are seen interacting with their bridal party after the ceremony.
Shortly after the Princess was photographed walking with her new mother-in-law, Queen Elizabeth II.
The new Princess is getting ready to pose for official portraits with her 25 foot train.
Moments later, the Windsor-Mountbatten and the Spencer family join her and Prince Charles for more portrait shots.
Queen Elizabeth is seen watching the television broadcast of the "wedding of the century."
Royal guest Princess Michael of Kent is pictured chatting up another guest at the special day.
The final amount wasn't disclosed, but the pictures were expected to sell for thousands of dollars especially after another photo of the Princess with a male friend was bought for $18,000 back in 2013.
Let us know which photo is your favorite in the comments!