The term RAP, PER OLD-SCHOOL RAPPERS is a reference to the art of rhyming, which is an integral part of rap music. Rhyming has been used in rap since its inception in the 1970s and is still used today. Old-school rappers such as Grandmaster Flash, Run-DMC, and The Sugarhill Gang were some of the first to popularize the art of rhyming in rap music. Rhyming is a key element of rap music, as it allows for the artist to express themselves through creative wordplay and storytelling.