The release of the album "25 Years On" was promoted with a 41 date UK tour during October and November 1978. The stage show was designed by Barney Bubbles and was based on a "Metropolis"/Mao Tse-tung dystopia theme, featuring a projected film based light show, dancers in drab clothing performing mundane tasks, and spotlight towers creating an oppressive internment camp atmosphere. During the course of the tour the show was cut-back due to financial constraints, sufficiently upsetting Bubbles enough for him to refuse to work with Brock again. Some of the musicians felt that this action lightened the atmosphere resulting in the shows becoming more powerful. For the Hammersmith Odeon gig on 13 October, Lemmy guested on "Silver Machine".