When it started its climb to the Top Ten of Billboard's R&B/hip-hop chart in late 1999, "Caught Out There" seemed like an audacious experiment: "What if Millie Jackson had a younger daughter signed to Ruff Ryders?" Instead, the retaliatory breakup anthem with a screamed chorus was the solo debut of Kelis Rogers, a charismatic singer with a singular rasp who would soon defy comparisons. Over the next seven years, Kelis scored additional hits with the Top Ten pop single "Milkshake" and the multi-platinum "Bossy," but those singles were mere appetizers for some of the boldest alb...