Curtis & Del were an American soul duo, most active during the 1960s and 70s. They were renowned for their distinctive blend of R&B, gospel, and soul, with Curtis Mayfield's falsetto vocals and Del Shannon's powerful tenor creating a signature sound. The duo left a significant mark on the music industry with influential works like "Keep on Pushing" and "Runaway." Their contribution to the civil rights movement through their music, particularly Mayfield's socially conscious lyrics, further cements their place in music history.