Erykah Badu performs during the Lollapalooza music festival in Grant Park Sunday, Aug. 8, 2010, in Chicago. (AP Photo/Nam Y. Huh)

Photo by: Nam Y. Huh

Erykah Badu performs during the Lollapalooza music festival in Grant Park Sunday, Aug. 8, 2010, in Chicago. (AP Photo/Nam Y. Huh)