People have long used hip-hop as a way to identify and express their dissatisfaction over issues in society. From protest songs during the Civil Rights Movement to anthems for justice during the Black Lives Matter movement, hip-hop unifies people, urges them to take action, and seeks to end oppression. Discover hip-hop's history in social justice, education, and advocacy, and learn more about the messengers of these movements, from Queen Latifah to Kendrick Lamar.