Prince’s massive discography is packed with pioneering fusions of funk, New Wave and rock: the simmering “Little Red Corvette”, the wild “Let’s Go Crazy”, the playful “Starfish And Coffee”. But a look at his songwriting credits shows just how much he shaped pop—particularly in the ’80s and ’90s, when Sinéad O’Connor, The Bangles, Sheila E. and others scored career-defining hits with Prince-penned tunes.