In 1971, Flack participated in the legendary "Soul to Soul" concert film by Denis Sanders, which was headlined by Wilson Pickett, along with Ike & Tina Turner, Santana, The Staple Singers, Les McCann, Eddie Harris, The Voices of Harlem, and others. The U.S. delegation of musical artists was invited to perform for 14th anniversary of African independence in Ghana. The film was digitally reissued on DVD and CD in 2004 but Flack declined permission for her image and recording to be included for unknown reasons. Her a cappella performance of the traditional spiritual "Oh Freedom" retitled "Freedom Song" on the original "Soul to Soul" LP soundtrack is only available in the VHS version of the film.