Alicia Keys' platinum-selling debut established her as a pop star, but even that album revealed her desire to explore the possibilities offered by R&B. Songs In A Minor's “Rock Wit U” was a stretched-out psych-funk jam that showed how she could ride a groove, a skill she'd hone further on tracks like the smoldering “Illusion of Bliss” as well as in her self-assured Unplugged appearance.