1972 saw Pink Floyd debut the performance of a not just a song (like on previous tours), but an entire album prior to its release. The original title was "Eclipse (A Piece for Assorted Lunatics)", then "The Dark Side of the Moon - A Piece for Assorted Lunatics", the name under which it made its press debut in February 1972 at London's Rainbow Theatre. The title changed for the first part of the US tour to "Eclipse (A Piece for Assorted Lunatics)" during April and May before reverting to "Dark Side of the Moon - A Piece for Assorted Lunatics" in September for the second part of the US tour and finally released in 1973 under the title of "Dark Side of the Moon".