1 of 80It's been reported that some disgruntled fans have walked out of Britney Spears' Australian tour after she apparently mimed her way through the shows.
But Britney's got back-up in the form of fellow singer John Mayer. He Tweeted: "If you're shocked that Britney was lip-syncing at her concert and want your money back, life may continue to be hard for you."
Join us as we take a look at Brit's exciting life in pics...
Find all the latest about your favourite star
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