"Brain Salad Surgery" is a progressive rock album by the British band Emerson, Lake & Palmer, released in 1973. The album features a blend of complex musical compositions, synthesizer-driven sounds, and elaborate arrangements. It includes notable tracks like "Karn Evil 9," which showcases the band's technical prowess and innovative style. The album cover, designed by H.R. Giger, is famous for its surreal and striking imagery, reflecting the album's avant-garde themes. "Brain Salad Surgery" is often regarded as a landmark in the progressive rock genre, highlighting the band's influence and creativity during the 1970s.