LOL. I'm a big Britney fan and I've heard most songs done by Britney so I know THIS IS HER VOICE. The accent did confused me a little the first time I heard the song. But of course, its the British accent. Not everyone are used to Britney doing this accent (thank you Simon). But then in the "I wanna scream and shout....", Britney's voice is very clear. Haters gotta hate.