As rap has become ubiquitous, its artists have moved slowly but steadily away from the street-centered mentality that made the music so potent in the 1980s and early 1990s. Realizing that rap has lost its edge and intensity, Los Angeles rap icon and Westside Connection member WC returns rap to its creative roots -- exemplary lyricism, conceptual greatness, bone-crushing production -- on his masterful new album, Guilty By Affiliation.