A Coalition to Eliminate Violence in Rap.

Writer and critic Nelson George. He's one of this country's most prominent chroniclers of black music and culture. His new book "Hip Hop America" (Viking) is a history of Hip Hop, and a memoir of his own life, growing up to the musical strains of Hip Hop.

George is one of this country's most prominent chroniclers of black music and culture. He was the black music editor at "Billboard" for seven years and is a regular columnist for the "Village Voice." His new book "Buppies, B-Boys, Baps and Bohos: Notes on Post-Soul Black Culture," is a collection of his writings about the last two decades in Black urban culture. George also edited the book, "Stop the Violence," a collaboration of top rappers working to end black-on-black violence.

Music critic Nelson George considers the changing nature of black music. In the past, Nelson says, African American artists, record store owners, and concert promoters were more community oriented. He thinks the focus now is on corporate-backed, commercial success.