Producer extraordinaire 9th Wonder has hooked up with Jay-Z once again for a special mashup mixtape called Black American Gangster. The two had worked on the original Jay-Z American Gangster album back in 2007, but apparently 9th didn’t feel like it was completely done. Now he has given the soundtrack a nice 70s vibe by mixing and mashing up music from that decade with Jigga-man’s verses. It works exceedingly well. Listen below.