Lena Horne (photographed in the 1950s) broke barriers for African-Americans in film and television, as well as on stage. Hulton Archive/Getty Images hide caption

toggle caption Hulton Archive/Getty Images

Mahalia Jackson sings at a Prayer Pilgrimage for Freedom in May 1957. Paul Schutzer; Time & Live Pictures/Getty Images hide caption

toggle caption Paul Schutzer; Time & Live Pictures/Getty Images

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