Roberta Flack and Donny Hathaway were a notable American vocal duo known for their soulful, emotive style. Their blending of gospel, R&B, jazz, and pop elements in the 1970s contributed significantly to the landscape of contemporary soul music. Their self-titled album, "Roberta Flack & Donny Hathaway," is particularly influential, featuring the hit "Where is the Love." Their collaboration is widely recognized for its powerful harmonies and emotional depth, marking a high point in both artists' careers.