Karn Evil 9

"Karn Evil 9" is an extended work by progressive rock group Emerson, Lake & Palmer, appearing on the album Brain Salad Surgery. A futuristic fusion of rock and classical themes, it was written by band members Keith Emerson and Greg Lake with former King Crimson lyricist Peter Sinfield. It is the fifth and final track on Brain Salad Surgery and, with a running length of 29 minutes and 37 seconds, is Emerson, Lake & Palmer's longest studio recording. The initial release of the album on vinyl split "Karn Evil 9" between the two sides due to its length, with a fade out/fade in between First Impression Parts 1 and 2.

Part or all of the song is included on many of the group's live albums and on all of the group's compilation albums and box sets.