Question: Marietta, Georgia, the county seat located in Cobb County, Georgia is home to what live hip-hop band that signed with Purple Ribbon Records in 2008?
Sentence (from "Sprayberry High School"): Sprayberry High School is a microcosm of Cobb County in that it serves students from a variety of ethnic groups, socio-economic levels, and academic abilities.
Relevant evidence: No