Britney stans and christina stans stfu !
I support both but christina is better vocally well as we know britney wont perform live
But britney is A bigger known and better selling artist.
THERE BOTH AMAZING.
So shut up bitching, Its not only about christina and katy tho they both will be amazing , and even tho britney isnt performing tonight it really doesnt suprise me she was brought into this dont you christina and britney stans just ever learn.