Maskman, also known as Harmon Bethea, was an American rhythm and blues singer known for his prominent role in the music industry during the 1960s and 1970s. His unique blend of soul, funk, and R&B, characterized by his powerful vocals and the rhythmic backing of his band, the Agents, set him apart in the genre. Bethea's most influential work includes the hit single "One Eye Open," which reached number 12 on the U.S. Billboard R&B chart in 1968. Despite his significant contribution to the R&B music scene, Bethea remains an unsung figure in music history.