Harold Melvin was one of the driving forces behind Philadelphia soul, leading his group the Blue Notes to the top of the charts during their stint on Kenny Gamble and Leon Huff's Philadelphia International label. Despite Melvin's billing out front, the Blue Notes' focal point was lead singer and onetime drummer Teddy Pendergrass, whose surging baritone graced the Blue Notes' recordings during their glory years of 1972-1975 and gave them a truly distinctive sound.