Here is a picture of Britney during rehearsals for the performance of Gimme More for Video Music Awards of 2007.
We assume she is in rehearsal since there are benchmarks tape on the floor, the sets are not the same as the live and the dancers seem to pause and not to dance.
Credit : @ Antoinelrx
I love this photo and then bcp Britney was not so big that its
There has always mark, even during the actual show. :)