Sharon Paige and Harold Melvin and the Blue Notes were a prominent American R&B/Soul group in the 1970s. Known for their emotive, lush harmonies underpinned by a rhythm and blues beat, they were a mainstay of the Philadelphia soul sound created by Kenny Gamble and Leon Huff. Harold Melvin was the group's leader, but it was the powerful vocals of Sharon Paige and Teddy Pendergrass that really defined their sound. Their most influential works include the chart-topping singles "If You Don't Know Me by Now" and "The Love I Lost".