Melanie Fiona previews her mix-tape with ?uestlove. [ENTREZ] The Root examines the world's worst dictators. [ENTREZ] Controversial Oprah bio to become movie. [ENTREZ] Dwayne Wade settles in with the the Heat, Miami. [ENTREZ] Where have they been? K-Ci & Jo Jo sit down with Hip-Wired. [ENTREZ]