But what could Katy do that's different? There isn't really anything new under the Sun. 
That's the whole point of being original

Candyforina was something fresh. Take KISS' 1982-1983 stage. The put the drumkit on a friggin tank! That played off of one of the songs of their album called "War Machine". Then for their '89-'90 tour they put a giant sphynx behind them since their album was called "Hot in The Shade" and that was the cover. Then their '92 stage had a giant statue of liberty who's face would fall off and her hand would crumble to reveal her shooting the bird
Katy will surprise us with something fresh and exciting, that I'm sure of.