Mick Jagger about the Stones’ Rock and Roll Circus planned for the following year (1967):
“The Stones will perform quite soon. What I want to do is have a show for young people which is not just pop stars coming on stage singing their latest recordings. I want it to include all kinds of acts- a stage show – except at the end we’ll go round on a revolving stage, leaping about for an hour to make up for the Palladium. Oh, and the ice creams will all have acid in them – that’s my brother’s idea! I suppose we could take an elephant on stage and break that up!”

(Ref, about the rock and roll circus)