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WASHINGTON - NOVEMBER 9: (FILE PHOTO) Princess Diana, wearing an evening dress designed by Victor Edelstein, dances with movie star John Travolta during her visit to America at the White House on November 9, 1985 in Washington, DC. (Photo by Pool/Tim Graham Picture Library/Getty Images)

WASHINGTON - NOVEMBER 9:  (FILE PHOTO) Princess Diana, wearing an evening dress designed by Victor Edelstein, dances with movie star John Travolta during her visit to America at the White House on November 9, 1985 in Washington, DC. (Photo by Pool/Tim Graham Picture Library/Getty Images)