The star said: “Some reporters have said they love it and some don’t. I came to Australia for my fans.”
Australian media suggested some fans left after three songs due to Spears’s miming and “lacklustre” performance at Perth’s Burswood Dome.
Promoter Paul Dainty said the singer was “extremely upset” over the claims.
He labelled the reports the “biggest lie I’ve ever heard”.
He added: “I’m so angry. We can take heat if there’s something wrong and people can review shows badly — that’s something you have to live with — but to say people stormed out of the show was an absolute fabrication.
“Britney is aware of all this and she’s extremely upset by it — she’s a human being.”
In a statement Spears said: “I hear there is a lot of controversy in the media about my show.”
A spokesman for the 27-year-old pop
star said “thousands of positive messages” had flooded in from fans backing the concerts.
The singer has been at the centre of debate over lip-synching since she arrived in Australia last week, even though it is no secret she mimes during her show.
Virginia Judge, the fair trade minister for the state of New South Wales, ignited the argument by suggesting concert tickets should carry disclaimers about whether parts of concerts were pre-recorded and mimed.
Dainty said it was well known parts of Spears’s concert was lip-synched and denied the suggestion it was hidden.
“It’s been all over the internet for nine months — this show is about an incredible spectacle, which it is,” he said.
More than 17 000 fans, who had paid between AUS$200-$1500 for a ticket, attended the first date on Spears’s tour.
The singer is performing 15 dates across the country as part of her Circus tour which kicked off in New Orleans in March. — BBCOnline.