I thought the synchro swimmers were good and would be a good act for Olympic year, but can't see how they are going to get the tank on the stage in the middle of a show in a theatre!
Filming it outside and playing it inside kind of detracts from being a live performance.

I don't know of any stages which are likely to be able to support such a heavy tank.
My vote is with Only Boys Aloud.
Px