Marisa Berenson, Halston and Liza Minnelli at the festivities.
Andy Warhol with Yves Saint Laurent, Mary Russell and Pierre Berge.
Marie-Helene de Rothschild with Princess Grace of Monaco.
Models on the stage including Jane Birkin, white shorts.
Costumed footmen take a break from the show.
Halston and Liza Minnelli