Hip-hop icon Angie Martinez sits down with rapper Fat Joe, organizer Chelsea Miller and The Brooklyn Hip-Hop Festival founder Wes Jackson to discuss hip-hop's influence on politics and social justice. WATCH FULL EPISODE OF HIP-HOP AT 50: RHYTHMS, RHYMES & REFLECTIONS -- A SOUL OF A NATION PRESENTATION: ABC: bitly.ws/IYJJ HULU: rb.gy/d5h5g SUBSCRIBE to ABC News: bit.ly/2vZb6yP WATCH MORE on abcnews.go.com LIKE ABC News on FACEBOOK: facebook.com/abcnews FOLLOW ABC News on TWITTER: twitter.com/abc #SOULOFANATION #HipHop #juneteenth #socialchange #politics #abcnews