18. Britney Spears – Don't get us wrong the people behind Britney have crafted some great songs over the years. Her videos are often pretty good too, considering the context. But the harsh reality is Britney couldn't sing live with a gun to her head. Once proclaimed as the new pop queen, thanks to her countless TV appearances and live tours she is now merely the queen of mime. Her management, of course, claim her performances are all about the “spectacle” rather than the singing. Yeah, right.

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