Author Todd Boyd will discuss "Hip Hop: The Mark of a New Revolution," from 12:30 to 2:30 p.m. in the Grand Salon of the University Student Union on the east side of the campus at 18111 Nordhoff St. in Northridge. The event also will feature performances and presentations by Hip Hop artists.

Boyd, a professor of critical studies in USC's School of Cinema and Television, is the author of Black, Rich and Famous: The Rise of the NBA, the Hip Hop Invasion and the Transformation of American Culture, which chronicles the rise of Hip Hop culture and the National Basketball Association. He is also the author of Am I Black Enough for You: Popular Culture from the ÔHood and Beyond and The New H.N.I.C.(Head Niggas in Charge): The Death of Civil Rights and the Reign of Hip Hop.

In addition to Boyd's presentation, Batuke, a Los Angeles-based Capoiera troupe will demonstrate the influence this Brazilian martial art form has had on American breakdancers. CSUN student breakdancers, rappers, D.J.s and graffiti artists will also display their work.

The event is sponsored by CSUN's Project Advocates for Cultural Talk (ACT), Associated Students and the University Student Union.