Background.

During the late 1970s an underground urban movement known as "hip-hop" began to develop in the South Bronx area of New York City. Encompassing graffiti art, break dancing, rap music, and fashion, hip-hop became the dominant cultural movement of the African American and Hispanic communities in the 1980s. Tagging, rapping, and break dancing were all artistic variations on the male competition and one-upmanship of street gangs. Sensing that gang members' often violent urges could be turned into creative ones, Afrika Bambaataa founded the Zulu Nation, a loose confederation of street-dance crews, graffiti artists, and rap musicians. The popularity of hip-hop spread quickly to mainstream white consumers through movies, music videos, radio play, and media coverage. The resulting flood of attention from wealthy investors, art dealers, movie and video producers, and trend-conscious consumers made hip-hop a viable avenue to success for black and Hispanic...