Which actor famously danced with Diana, Princess of Wales at the White House?

The "Travolta dress" (also known as the "John Travolta dress") is a dress once owned by Diana, Princess of Wales. It was worn for the first time at a gala dinner at the White House in November 1985. It is named after the American actor John Travolta, with whom the Princess danced at the dinner.

Designed by London-born Victor Edelstein, the Travolta dress is an off-the-shoulder midnight blue velvet evening gown. It was inspired by Edwardian fashion, giving it a "slight sweep of costume drama". The journalist Jackie Modlinger described it as "dramatic in style" and "regal in fabric".

Diana, Princess of Wales, visited the United States in early November 1985 with her husband Prince Charles. The couple stayed at the White House, where they attended a gala dinner on 11 November. On that occasion, the Princess of Wales wore Edelstein's dress. She was photographed dancing with the actor John Travolta to the music of his 1977 film Saturday Night Fever in the Entrance Hall. The photographs and TV footage of them "gliding around the room" were widely circulated around the world, and the gown came to be known as the "Travolta dress".

Shortly before her death in August 1997, Diana requested that the dress be sold in a charity auction. Florida-based businesswoman Maureen Dunkel bought it for £100,000 in New York in June 1997. When Dunkel went bankrupt she was forced to sell the dress. It was auctioned in London on 19, March 2013, fetching £240,000 ($362,424).