Classic progressive rock album by Emerson, Lake, and Palmer (ELP) released in 1972.

Most people are familiar with the song "Karn Evil 9, 1st Impression, Part 2" colloquially known as "Welcome Back My Friends to the Show that Never Ends," being a staple of classic rock radio stations.

The album also has a version of the William Blake poem/hymn "Jerusalem" that's quite fun.