Alicia Keys is best known as an impassioned urban-soul torch singer with classical piano chops, but that assumption overlooks the native New Yorker's full range of talent. She's a brilliant steward of hip-hop, psych-soul, electro-R&B and worldly club pop. Plus, her duets—drumline pop with Beyoncé and a spy-film rager with Jack White—are showstoppers.