Cranium Command by Leo Matsuda, the short "is the story of the internal struggle between a man’s Brain—a pragmatic protector who calculates his every move, and his Heart—a free-spirited adventurer who wants to let loose." "Cranium Command", along with "Reason and Emotion" is cited as one of the main inspirations for the short. In July 2018, it was reported that the Audio-Animatronic Stars of Cranium Command, Captain Buzzy and the Hypothalamus, would be removed from the show building as an additional part of some routine maintenance sweeping over the entire pavilion. However, urban explorers discovered that Buzzy was still in the pavilion
What Is and What Should Never Be and What Should Never Be" was performed live at Led Zeppelin concerts between 1969 and 1973. A live version taken from a performance at the Royal Albert Hall in 1970 can be seen on the "Led Zeppelin DVD". Another was included on disc two of the live triple album "How The West Was Won". Two more versions were included in BBC Sessions. What Is and What Should Never Be "What Is and What Should Never Be" is a song by English rock band Led Zeppelin. It was written by Jimmy Page and Robert Plant and was included as the second