The pop music genius Prince Rogers Nelson, better known to most of us as Prince, made his national television debut on American Bandstand in 1980. Performing “I Wanna Be Your Lover,” his first big hit in the United States, he gave the country its first taste of the Minneapolis Sound, an infectious blend of rock, R&B, funk, and New Wave that would become a significant force in American pop music during the 1980s, ’90s, and early 2000s. An astounded Dick …