The Wall Tour was a concert tour by the English progressive rock band Pink Floyd throughout 1980–1981 in support of their concept album The Wall. The tour was relatively small compared to previous tours for a major release, with only 31 shows in total. The tour was notable for its extensive use of stage theatrics, most notably a giant wall constructed across the stage to convey the sense of alienation present in both the album, and Roger Waters' personal feelings at the time. This was the last tour of Pink Floyd with Roger Waters. 17 June 1981 was the last concert of the tour, and the last concert with Waters (until 2 July 2005 at Live 8 24 years later). Background "I was struck by the thought that there was a huge wall, that you couldn't see, between me and the audience," explained Roger Waters. "Then I drew it and started to talk to people about it. And they thought I was mad, because my original idea was to start building a wall at the beginning of the show and, when it's finished, they can't see you or hear you any more, and then the show is over." The tour's costs were estimated to have reached US$1.5 million even before the first performance (equivalent to US$4.7 million as of 2021). The New York Times stated in its 2 March 1980 edition: "The Wall show remains a milestone in rock history though and there's no point in denying it. Never again will one be able to accept the technical clumsiness, distorted sound and meagre visuals of most arena rock concerts as inevitable." It concluded, "The Wall show will be the touchstone against which all future rock spectacles must be measured." Nick Mason explained: The concert was performed just 31 times in four cities: Los Angeles (7 shows), Uniondale (5), Dortmund (8) and London (11). The primary 'tour' consisted of 18 shows in L.A., Uniondale and London in 1980, but the band performed a further eight shows in Dortmund (13–20 February 1981) and five more shows at Earl's Court (13–17 June) for filming, with the intention of integrating the shows into the upcoming movie. The London shows are documented on the album Is There Anybody Out There? The Wall Live 1980-81. David Gilmour and Mason attempted to convince Waters to expand the show for a more lucrative, large-scale stadium tour, but because