Before Bianca Jagger became one of the '70s foremost socialites and an actress of her own accord, she was Blanca Pérez-Mora Macías, a girl from Managua, Nicaragua. Later, as the wife of Rolling Stones frontman Mick Jagger and a friend to Andy Warhol, Halston, and Liza Minelli, Bianca became synonymous with the New York scene and, thus, '70s style. A frequent face at Studio 54, Jagger's sophisticated yet ultra-glamorous style came to life in the club, as did her show-stopping antics—in 1977, she rode into the club on horseback. The socialite and humanitarian never met a tailored piece of clothing she didn't like—her style favored double-breasted blazers, fur-trimmed coats, and wide-legged pants. Over her five decades in the spotlight, she's been a muse to some of fashion and art's most formidable names—Halston, Yves Saint Laurent, Warhol—all the while establishing a style signature to herself. From her famed YSL bridal suit to many Grecian-esque gowns, take a loo...