Petal Gown

Jessica Simpson's sweet dress is completed with a fully tiered skirt and a giant rosette at the left hip and a finishing touch. The strapless neckline is perfect for a sparkling statement necklace.

The classic cocktail sheath gets a sultry twist - literally - with this cool-hued draped iteration from Michael Kors - V-neckline, sleeveless, crisscross front with front waistline drape, knee-length skirt, concealed back zip closure - Fitted draped silhouette - Style with strappy pumps, a sleek evening trench, and an embellished clutch

An asymmetric neckline and a dramatic floor-sweeping length lend timeless glamour to this gown from Donna Karan - Asymmetric neckline with exposed shoulder and draped overlay, long sleeves, draped panel at waist, maxi length - Fitted silhouette - Wear with strappy sandals and a classic clutch

Dressed up with textural bead-embellished cap sleeves, this asymmetrical draped black dress from Helmut Lang is a tough-girl take on cocktails-chic - Draped asymmetrical V-neckline, textural bead embellished cap sleeves, side gather, exposed metal side zip, asymmetrical hemline - Fitted - Wear with booties and minimalist accessories