Prince's early albums Dirty Mind, 1999, and Purple Rain, established him as a major force in American pop music. His combination of rock and funk was unique, and drew both critical praise and commercial attention. The 1990s found Prince forming a new group, moving back in the direction of R&B, and eventually adopting an unpronounceable symbol as his moniker. By the end of the millennium, he was again exploring an eclectic collection...