"Crystal Japan" is an instrumental piece written by David Bowie and released as a single in Japan in spring 1980. It was recorded during the Scary Monsters sessions that year. The instrumental was used in a Japanese commercial for the shochu Crystal Jun Rock, which also featured an appearance by Bowie, although he said at the time that the track was not specifically written for this purpose. Originally titled "Fuji Moto San", it was apparently intended to close the Scary Monsters album until replaced by "It's No Game (No. 2)".