Pareidolia

Pareidolia is the easter egg song for the most recent Zombies map, Shangri-La. It is sung by Elena Siegman, and written by Kevin Sherwood. The song is activated by holding down the action button at 3 meteors scattered across the map just like in Kino Der Toten and Call Of The Dead.

thumb|300px|right|The song with lyrics.

Trivia

 * Funnily enough, it goes for 6:11. "Abracadavre" in Ascension also went this long.
 * It is tied with "Abracadavre" as being the second longest zombie song, the longest being "Not Ready To Die" in Call of the Dead.
 * Pareidolia is a psychological phenomenon. It is a type of illusion or misperception involving a vague or obscure stimulus being percieved as something clear and distinct (Thinking you see a face or figure in a object, hearing hidden messages in songs if played backwards, etc). This references 115, and how anyone who comes into contact with it slowly loses their mind.