Marshall Bruce Mathers III, known professionally as Eminem, is an American rapper, songwriter, and record producer. Most successful songs on the U.S. Billboard Hot 100 include The Real Slim Shady, Without Me, Lose Yourself, and Not Afraid. His alter ego, Slim Shady, is used to express his anger with lyrics about drugs, crimes, and murder. Dark, aggressive, rough, brash, full of rage and all the negative things in the universe, but still perseverant, kindhearted, loyal, and dedicated. 