Yasiin Bey ( yass-EEN BAY; born Dante Terrell Smith; December 11, 1973), formerly known as Mos Def ( MOHSS DEF), is an American rapper, singer, and actor. A prominent figure in conscious hip-hop, he is recognized for his use of wordplay and commentary on social and political issues, such as police brutality, American exceptionalism, and the status of African Americans in the United States. After embarking on his career in 1994, he joined his siblings in the short-lived rap group... [more on Wikipedia]