Kevin Young, director of the National Museum of African American History and Culture, and Dwandalyn Reece, associate director for curatorial affairs, discuss the “Smithsonian Anthology of Hip-Hop and Rap."

Common has often explored racial and social justice in his work as an artist, actor, author and activist. His new album, “A Beautiful Revolution Pt. 2,” asks what comes next after the events of the past year and a half.