 The mid-1970s were the era of extravagant stage shows, from the likes of Elton John, Alice Cooper, Kiss and Queen.In keeping with this, the Stones embraced a new format for the 1975 concerts.Their act was aided by theatrical stage props and gimmicks, including a giant inflatable phallus (nicknamed 'Tired Grandfather' by the band, since it sometimes malfunctioned) and, at some shows, an unfolding lotus flower-shaped stage that Charlie Watts had conceived.