Turn Off The Radio Vol 4 : Revolutionary But Gangsta Grillz ​dead prez

Turn Off the Radio Vol. 4: Revolutionary but Gangsta Grillz is a 2010 mixtape by political hip-hop duo Dead Prez. It was released on June 22, 2010. It celebrates the 10th year anniversary of "Let's Get Free",[1] is the fourth of the "Turn Off the Radio" mixtape series and the first as a "Gangsta Grillz" which are released by DJ Drama