Sir Elton John claims he once danced with the Queen to rock'n'roll hit Rock Around The Clock.
The musician said she asked if she could join him on the dancefloor when he attended an event at Windsor Castle.
Sir Elton talks about his dance to the Bill Haley tune as he recalls
his royal encounters when he appears as a guest on tomorrow night's
Graham Norton Show on BBC One.
He explained: "Princess Margaret
and I became friends. I took her to the cinema once at the Odeon
Kensington. We had a lovely time and then we went out to dinner and I
took her home. Nothing happened of course.
"I also once danced
with Princess Anne at Prince Andrew's 21st Birthday and the Queen came
over and said, 'may I join you?'. We danced to Bill Haley's Rock Around
the Clock. It was one of the most surreal moments of my life.
"Having been born in a council house in Pinner the chances of dancing with the Queen at Windsor Castle were pretty long."
He also told how enjoys his children's bathtimes before he goes onstage
during tours - sometimes still with foam on his outfits.
The
66-year-old performer - who has two children with his partner David
Furnish - said: