Southern hip hop

Southern hip hop (also known as Southern rap, South Coast hip hop, or dirty south) is a type of hip hop music that comes from the Southern United States. 
Many early Southern rap artists released their music independently or on mixtapes after finding it difficult to obtain record-label contracts in the 1990s. By the early 2000s, many Southern artists had achieved national success. Over the decade, Southern hip-hop varieties, both mainstream and underground, have become among the most popular and influential of the entire genre.
In 2003 a documentary movie called "Dirty States of America: The Untold Story of Southern Hip-Hop" was released.