Elmore James (January 27, 1918– May 24, 1963 was an American blues guitarist, singer, songwriter and bandleader. He was known as "King of the Slide Guitar" and was noted for his use of loud amplification and his stirring voice. For his contributions to music, James was inducted into the Rock and Roll Hall of Fame in 1992.
James played a wide variety of "blues" (which often crossed over into other styles of music) similar to that of Muddy Waters, Howlin' Wolf and some of B. B. King's work, but distinguished by his guitar's unique tone, coming from a modified hollow-body acoustic guitar, which sounded like an amped-up version of the more "modern" solid-body guitars. 
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