OMG! OMG! OMG!!!!
Perez was invited to a dress rehearsal for Britney's upcoming Femme Fatale tour this evening!!!!
Brit Brit will be running through the entire show, as if it was a real concert.
We are freaking out!
Of course we will be sharing our thoughts and telling you what to expect!
Check back to PerezHilton.com for your exclusive inside access to Britney's new tour!!!!
[Image via WENN.]