RJD2

RJD2 is the stage name of Ramble Jon Krohn, an American hip-hop producer and musician originally from Columbus, Ohio. He released his debut solo album, Deadringer, on the Definitive Jux label in 2002. Krohn has been a member of the groups Soul Position (with rapper Blueprint), Icebird, and MHz Legacy. A frequent collaborator, his 2006 album with rapper Aceyalone, Magnificent City, included the track "A Beautiful Mine," which became the theme song for the television series Mad Men. He later founded his own label, RJ's Electrical Connections.