Devolution of Rap

Grandmaster Flash: "Rats in the front room, roaches in the back, junkies in the alley with the baseball bat."

2Pac: "Before we find world peace, we gotta find peace and end the war on the streets."

Lil' Jon: "Get low...get low, get low, get low, get low, get low, get low."

Wiz Khalifa: "Black and yellow, black and yellow, black and yellow, black and yellow."