I'm obvi a big Britney fan! BUT everyone knows that she lip-syncs. Or at least they THINK they know. Britney isn't a big fan of people saying this.
She says, quote, "A lot of people think that I don't sing live. Because I'm dancing so much I do have a little bit of playback, but there's a mixture of my voice and the playback.
"It really pisses me off because I am busting my ass out there and singing at the same time and nobody ever really gives me credit for it."
Click here to hear her talking about it. The audio isn't the greatest!