"The Devil You Know" is the one and only studio album by Heaven & Hell, the Black Sabbath MOB RULES line up. It was the Ronnie James Dio final studio album before his death in May 2010. The album's US import was released in Japan on 24 April 2009, four days earlier than its original due date of 28 April. The Japan pressing which is a SHM-CD (Super High Material CD) was released on 27 April. It was produced by the band and sound engineer Mike Exeter. In 2006 the Ronnie J