The (UK) Spinners used to get their audiences doing "Wimoweh, wimoweh" on one side and "Hey up boy, Wimoweh" on the other, and another group (was this a triangular auditorium??) doing "Hey up, hey up, hey up etc with one member of the group leading each section while Tony Davis did the Pete Seeger "wailing".
RtS (I last heard it live in St Lucia done by the local folkish duo who did it without the wailing!)