Right now, Justin Bieber has both the #1 single and the #1 album in America. That album, Justice, has been getting some flack because of the way it uses the voice of Martin Luther King, Jr. One song, “MLK Interlude,” has audio of a speech that King gave in Atlanta in 1967. Another song, the opening track “2 Much,” also has a King sample. King himself gets posthumous writing credits on both songs.