Every hip-hop fan knows the images: The Notorious B.I.G. rocking the "King of New York" crown, Tupac Shakur with the double-finger salute, Jay-Z peeking through his hands as he throws his diamond up.
Producers Fast Eddie and Joe Smooth mix at DJ International Studios in Chicago in 1990. Innovation was at the forefront of house and hip-hop. Raymond Boyd/Getty Images There was a time when artists ...