"Karn Evil 9" is a progressive rock suite by the band Emerson, Lake & Palmer, featured on their 1973 album titled Brain Salad Surgery. The piece is divided into three parts, showcasing a blend of complex musical structures and lyrical themes that explore the relationship between humanity and technology. The lyrics of "Karn Evil 9" depict a futuristic carnival where machines and artificial intelligence dominate. The narrative reflects concerns about the loss of human identity and the impact of technology on society, making it a thought-provoking work that resonates with listeners even today.