During the 1981–1982 American tour, the Stones worked with Japanese designer Kazuhide Yamazari in constructing their stages for stadium-sized locations and audiences. During this period, stages increased in size to include runways and movable sections of the stage going out into the audience. This tour used coloured panels and was one of the last Stones tours to do so before switching to devices such as video screens. Stadium shows provided a new challenge for the band. The venues were large enough in size that the band became "like ants" to audience members. This resulted in Jagger having to project himself "over the footlights" and the band needing to use more gimmicks, such as pyrotechnics, lights and video screens.