The Edwin Hawkins Singers were a gospel group best known for their crossover hit, "Oh Happy Day," in 1969. Led by Edwin Hawkins, an American gospel musician, pianist, choir master, composer, and arranger, the group was instrumental in popularizing contemporary gospel music. Their distinctive sound combined traditional gospel with modern R&B and jazz influences, making their music accessible and appealing to a broader audience. Their influence on gospel music and their contribution to its evolution cannot be understated.