Chaka Khan in her 2002 version. Where Marvin's original is a slow, meditative groove ... the bassline walking through the chaos with patience, his voice gentle even in its anguish ... Chaka brings a different kind of energy to the song. Her voice does not ask the question softly. She demands it, her voice rising through the arrangement like a woman who has been asking the same question for too long and is tired of waiting for an answer. The arrangement is built around a driving funk rhythm section, the horns punching harder, the production bigger. Where Marvin was bewildered, Chaka is angry, and the anger is as valid a response to the world's injustices as Marvin's gentle confusion. The question is the same. The tone has shifted.</p>