Recorded in 1973 during a series of acid-fuelled all-night jam parties held at producer Dieter Dierks' studio near Cologne, Cosmic Jokers was the work of a veritable krautrock supergroup that included Dierks himself, Manuel Göttsching (Ash Ra Tempel), Klaus Schulze (Tangerine Dream), Jürgen Dollase and Harald Grosskopf (both of Wallenstein).