Robin D.G. Kelley is a professor of history and American studies and ethnicity at the University of Southern California. From 2003-2006, he was the William B. Ransford Professor of Cultural and Historical Studies at Columbia Univeristy. From 1994-2003, he was a professor of history and Africana Studies at New York University as well the chairman of NYU's history department from 2002-2003. One of the youngest tenured professors in a full academic discipline--at the age of 32--Kelley has spent most of his career exploring American and African-American history with a particular emphasis on African-American musical culture, including jazz and hip-hop.