Hit Parade

What makes a song a smash? Talent? Luck? Timing? All that—and more. Chris Molanphy, pop-chart analyst and author of Slate’s “Why Is This Song No. 1?” series, tells tales from a half-century of chart history. Through storytelling, trivia and song snippets, Chris dissects how that song you love—or hate—dominated the airwaves, made its way to…