Demon Days is the second studio album by the British virtual band Gorillaz. It was released on 11 May 2005 in Japan, 23 May 2005 in the United Kingdom by Parlophone, and 24 May 2005 in the United States by Virgin Records. The album was recorded at Studio 13, based in London, United Kingdom, and was primarily produced by Danger Mouse, alongside the band themselves, Jason Cox, and James Dring. The album features guest appearances from De La Soul, Neneh Cherry, Martina Topley-Bird, Roots Manuva, MF Doom, Ike Turner, Bootie Brown of The Pharcyde, Shaun Ryder, and Dennis Hopper.