"I do think that still that year's attendance at the show was a record and that shows what an attraction she was for the general public".
In 2014, he told The Telegraph that he wasn't nervous 'because I'd seen her dance with Charles beforehand so I knew that she was strong.
"She was very friendly and helpful, chatting to the children", he said, recalling how she helped one child into her coat "just like a mum".
While there, she read from her book titled The Day I Met a Princess, published after Princess Diana's passing.
Linda Grant, from Britain, said that "it's like it was yesterday still, which means she is still here in our hearts".
Noted for her compassion, Diana was widely known for her encounters with terminal patients, the poor and unwanted whom she used to provide comfort.
The 20th anniversary of Diana's death has prompted a renewed fascination with the "People's Princess", as she was dubbed by then prime minister Tony Blair, with her sons Prince William and Harry leading the tributes.
People are today gathering outside the gates of Kensington Palace to celebrate the life of Diana, 20 years on from her tragic death.
In London, people also gathered early to place floral tributes, photos and personal messages at the gates of Kensington Palace. The singer famously performed an alternative version of his poignant song Candle In The Wind in honour of Diana at her funeral, held days after she was killed in a Paris vehicle crash.
"The woman, who I later found out was Princess Diana, was on the floor in the back", continued Gourmelon, claiming he did not recognize the royal at the time of the incident.
Across Britain, people are marking the 20th anniversary of the Paris auto crash which claimed the life of Princess Diana.
Diana's memory is now worth millions of pounds a year in accessories, souvenirs and exhibitions. Her boyfriend, Dodi Fayed, and her driver, Henri Paul, also died in the crash. The White Garden, designed as a tribute to her style and grace, and the commissioning of a new statue of their mother were the two memorials chosen by William and Harry to mark the 20th anniversary of her death. "In terms of press interest, in terms of the way the younger royals go about their job, so she is that lynch pin, she does still hold it together, she is still that focal point".