Question: When was the hip hop group formed in which Melvin Glover was a  pioneers of rap as lead rapper?
Sentence (from "Grandmaster Flash and the Furious Five"): Composed of one DJ (Grandmaster Flash) and five rappers (Melle Mel, The Kidd Creole, Keith Cowboy, Mr. Ness/Scorpio, and Rahiem), the group's use of turntablism, break-beat deejaying, and conscious lyricism were significant in the early development of hip hop music.
Relevant evidence: No