Touring with the USO during WWII, the singer refused to entertain segregated audiences, which meant she’d sing to audiences of African-Americans and German POWS (not white soldiers). She also protested when POWs were given better seating than African American soldiers. Horne was blacklisted in the 50s. In the Civil Rights Movement, Horne was a powerful female voice and presence: she participated in the March on Washington in which King gave his famous dream speech. She also received an Oscar Tribute posthumously.