After several appearances on "The Ed Sullivan Show he was banned from the Sullivan show in the mid-1960s because of his support of two prominent blacklisted artists, Pete Seeger and Paul Robeson, his role model and the godfather of his children. When the civil rights movement heated up, Bibb joined Seeger, Bob Dylan, Peter, Paul and Mary and other folk singers at landmark protests, including the 1963 March on Washington. Two years later he joined the thousands of protesters who marched from Selma to Montgomery, Ala., in support of blacks' voting rights and performed in Montgomery with Baez, Belafonte, Mary Travers and Oscar Brand.