The critically acclaimed Bitter, 1999's brooding song cycle about a troubled relationship, cast NdegeOcello as a mature and unconventional chronicler of human behavior, but since then, she's taken more creative risks.

NPR: MeShell NdegeOcello in Concert

In the first two experiments, the researchers took to the sidewalks near Berkeley and investigated the relationship between car type -- a reliable, if crude, measure of status -- and driver behavior.

CNN: Are rich people more unethical?