A look at hip-hop and rap stars by region. Artists include 2Pac; 50 Cent; Bone Thugs-N-Harmony; Da Brat; Dr. Dre; Eminem; Ice Cube; Jay-Z; Ludacris; Mobb Deep; Nas; Nelly; Notorious B.I.G.; OutKast; Scarface; Snoop Dogg; Too Short; Trick Daddy; Trina; Twista.