Gilbert Scott-Heron (April 1, 1949 – May 27, 2011) was an American jazz poet, singer, musician, and author, known primarily for his work as a spoken-word performer in the 1970s and 1980s. His collaborative efforts with musician Brian Jackson featured a musical fusion of jazz, blues, and soul, as well as lyrical content concerning social and political issues of the time, delivered in both rapping and melismatic vocal styles by Scott-Heron. His own term for himself was "bluesologist", which he defined as "a scientist who is concerned with the origin of the blues". His poem "The Revolution Will Not Be Televised", delivered over a jazz-soul beat, is considered a major influence on hip hop music.