Roy Kelton Orbison was an American singer, songwriter, and musician known for his powerful voice, wide vocal range, impassioned singing style, complex song structures, and dark, emotional ballads. The combination led many critics to describe his music as operatic, nicknaming him "the Caruso of Rock" and "the Big O". While most male rock-and-roll performers in the 1950s and 1960s projected a defiant masculinity, many of Orbison's songs instead conveyed vulnerability.