Cyberpunk is a science fiction genre noted for its focus on "high tech and low life", featuring advanced technology and cybernetics, coupled with a degree of breakdown or radical change in the social order. Some musicians have been classified as cyberpunk due to their aesthetic style and musical content. Often dealing with dystopian visions of the future or biomechanical themes, some fit more squarely in the category than others. Bands whose music has been classified as cyberpunk include Queensrÿche, Psydoll, Front Line Assembly, Atari Teenage Riot and Sigue Sigue Sputnik. Some musicians not normally associated with cyberpunk have at times been inspired to create concept albums exploring such themes. Nine Inch Nails' concept album Year Zero fits into this category. Billy Idol's Cyberpunk drew heavily from cyberpunk literature and the cyberdelic counter culture in its creation but itself was not 'cyberpunk'. 1. Outside, a cyberpunk narrative fueled concept album by David Bowie, was warmly met by critics upon its release in 1995. Many musicians have also taken inspiration from specific cyberpunk works or authors, including Sonic Youth, whose albums Sister and Daydream Nation take influence from the works of Phillip K. Dick and William Gibson respectively.