A Blast of the Best Ultimate arbiter of style for more than seven decades, the annual International Best-Dressed List has always reflected the world it surveys. Following this year’s debut of VF.com’s Best-Dressed Challenge, Amy Fine Collins charts the cultural shifts since 1940—as the List picked its way through World War II, the jet age, the 60s, grunge, and other upheavals—while Mario Testino captures a high-spirited gathering of friends and honorees.