Stylist: Nicole Chavez

Her client roster: Rachel Bilson, Scarlett Johansson, and Catherine Zeta-Jones.

Her Secret: "Monochromatic head-to-toe is a chic and timeless way to lengthen any body type. When wearing one shade, there is nothing to draw your eye to. Instead, your eye sees one shape, creating a lean silhouette. It doesn't break up the body."

Photo: Courtesy of J.Crew