Judy B served as the on- and off-screen stylist for Mary-Kate and Ashley Olsen early in their career, playing a large role in shaping their early fashion lines.

As Senior Vice President of Fashion for Dualstar, Mary-Kate and Ashley’s lifestyle brand, Judy B’s creative vision extended the company's reach to mega-retailers globally, influencing the fashion choices of millions of tween and teen girls.

Judy B also styled the Mary-Kate and Ashley doll collection for Mattel, and her creative vision and influence helped transform the fashion line into a comprehensive lifestyle brand encompassing cosmetics, home furnishings, footwear, sleepwear, and accessories. Her significant impact on young girls worldwide earned her the moniker "Queen of Tween."