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 "Purple Ribbon Records"): On July 30, 2008, Big Boi announced on DJ Envy's radio show that he recently signed the Marietta, Georgia live hip-hop/pop band Vonnegutt.
Relevant evidence: Yes