Former Royal Ballet principal dancer Darcey Bussell wears a Valentino black ruffle-edged cocktail gown from 1970-1971 as she poses with an ivory satin bridal gown by the Fontana Sisters from 1952, in London, December 7, 2009. Both dresses previously owned by U.S. actress Audrey Hepburn will be auctioned in London on Tuesday with the cocktail gown expected to sell for 4,000-6,000 pounds (6,500-9,800 USD) and the wedding dress 8,000-12,000 pounds(13,00-19,600 USD). REUTERS/Suzanne Plunkett (BRITAIN - Tags: ENTERTAINMENT FASHION SOCIETY BUSINESS)