Super Bowl II halftime show, January 14, 1968 at Miami Orange Bowl (Miami, Florida). Performing: Grambling State University Marching Band. Grambling State University is a public historically black university in Grambling, Louisiana, United States. Grambling State is home of the Eddie G. Robinson Museum and is listed on the Louisiana African American Heritage Trail. Grambling State is a member-school of the University of Louisiana System and Thurgood Marshall College Fund. Wiki link Super Bowl II: Wiki link