In reply to MisterMKR.

Lies. If you layered the studio track to the audio from that 2011 performance you would see that they are the exact same. You can't even hear Britney breathing on the audio from that "live" 2011 performance and there is no way that Britney would have sounded that clear while she was jerking around the stage so that's bullshit and you know it. Besides, she has never put any effort in to covering up her lip syching so you are especially delusional if you think that was live.