She has had more than her fair share of criticism for allegedly not singing live at her concerts, but Britney Spears has something to tell you: she's mad as hell, and isn't gonna take it anymore.

According to the Louisiana pop star, she doesn't get due credit for her performances and she doesn't use a backing track. At least, not always.

In a new interview with an Israeli media outlet, she said: "It's really funny: A lot of people think 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'm busting my ass out there and singing at the same time and nobody ever gives me credit for it, you know?"

What do we think - is Brit to be believed?