This is a filmed documentary of a black music festival held on August 20, 1972 at the Los Angeles Coliseum, sponsored by Stax Records and Schlitz Beer. The L.A./Watts riots demonstrated the community's urgent needs to the black show-business community. All the proceeds from the concert and this movie went to charity. Among the better-known performers were Isaac Hayes, The Emotions, The Staple Singers, Little Milton and Luther Ingram. Richard Pryor, at the peak of his form, hosts and provides scatological and satiric comic relief.