Next to Sporty, Scary, Baby and Ginger, it was who, decades after their girl power heyday, still looked every inch the fashion plate in the group - one who, last week, told us that the band's first US Vogue cover meant more to her than any of her friends. Let's start with the dress: The star wore a corseted frock in a honey calf-hair, and the silhouette featured a sweetheart neckline and...