gee street records, bambaataa and john baker organized a concert at wembley stadium in london in 1990 for the african national congress (anc), in honor of nelson mandela's release from prison. the concert brought together performances by british and american rappers, and also introduced both nelson and winnie mandela and the anc to hip hop audiences. in relation to the event, the recording ndodemnyama (free south africa) helped raise approximately $30,000 for the anc.