Go retro in a frock with a disco-era past, like this silk-taffeta gown that puts a sexy spin on the '70s trapeze dress. The bodice has a plunging V-neck and an open back; a large bow and crystal brooch accent the waist of the A-line skirt. About $3,500,
Pnina Tornai. Earrings, Givenchy,
Macy's.