D'Angelo established himself as an unwitting founder and leading light of the late-'90s neo-soul movement, which aimed to bring the organic flavor of classic R&B back to the hip-hop age. Modeling himself on the likes of Marvin Gaye, Prince, Curtis Mayfield, and Al Green, D'Angelo exhibited his inspirations not only with his vocal style -- albeit with a stoned yet emotive twist all his own -- but also wrote his own material, and frequently produced it, helping to revive the concept of the all-purpose R&B auteur. His first album, Brown Sugar (1995), gradually earned him an audie...