The P-C police isn't welcome here. When politically charged rap pushed its way to the forefront of American consciousness in the 80s and revealed a very different reality of life for black urban America — with its gross racial injustices and contempt for corrupt authority — controversy came with it. At the helm was Schoolly D and Ice-T whose album, O.G. Original Gangster (1991), was one of the key factors in developing the genre of gangster rap. Another rapper leading the charge was Chuck D, the main force behind Public Enemy, who fused rap and black-power politics like none before or since, paving the way for later activists like Killer Mike and Kendrick Lamar, who became popular for his sharp observations of street culture and the psychology of the victims of crimes.