When the Dirty South movement broke nationwide at the turn of the century, Ludacris rode it to immediate widespread popularity, becoming arguably the most commercially successful Southern rapper of the time. In 2000 the Atlanta-based rapper signed to Def Jam's newly established Southern rap subsidiary, Def Jam South, and became the label's flagship Dirty South artist. Def Jam repackaged his underground album Incognegro (2000) as Back for the First Time (2000) and issued "What's Your Fantasy?" as...