EPIX show live voice of Britney on TV special????

Fans are angry with the previews of "Britney Spears Live: The Femme Fatale Tour", they claims EPIX dubbing Britney´s voice and want the real recordings of Toronto´s show for the TV/DVD/Blue-Ray special live concert.

Check out this comparison of live vs. Epix:



What do you think? i think is true...