Singer Roy Shirley laid the foundations for rocksteady with his Joe Gibbs-produced 1967 hit "Hold Them." An eccentric, dynamic performer famed for his theatrical stage garb and quavering vibrato, his scant recorded output and limited international fame belie his significant influence on the evolution of reggae. Born July 18, 1944 in Kingston, Jamaica, Shirley first honed his three-octave voice in the choir of his mother's Trenchtown revivalist church. As a teen he began competing in local talent contests, befriending fellow competitor Jimmy Cliff, who encouraged him to go pro....