CunninLynguists released their fourth studio album, Dirty Acres, on November 27, 2007, through a joint venture between their own label APOS Music and Swedish-based label Bad Taste Records. Produced entirely by Kno, it features artists such as Devin the Dude, Phonte of Little Brother and Witchdoctor, and was described by CMJ New Music Monthly as "a defiant album that questions everything, even the assumed standards of hip hop". It was lauded by Michael Kabran of PopMatters as "easily one of the best hip-hop albums of 2007 and arguably one of the best albums of the past decade". CunninLynguists made their way across the United States, Europe and Canada in support of the album, headlining the Dirty Acres Tour in 3 parts over the course of 2008.
