Kurtis Walker (born August 9, 1959), professionally known by his stage name Kurtis Blow, is an American rapper, singer, songwriter, record/film producer, b-boy, DJ, public speaker and minister. He is the first commercially successful rapper and the first to sign with a major record label. "The Breaks", a single from his 1980 self-titled debut album, is the first certified gold record rap song. Throughout his career he has released 17 albums and is currently an ordained minister.

Source: Wikipedia (https://en.wikipedia.org/wiki/Kurtis_Blow)