People Expect A LIVE Show. Not A CD Overdub

People.COM -- John Mayer has wandered into the controversy plaguing Britney Spears in Australia, where critics in the media have blasted her for lip-synching on her "Circus" tour.

On Saturday, Mayer, who happens to be Down Under to promote his own album, Tweeted the following: "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."

Why all the fuss?

On Friday, about 100 angry fans reportedly stormed out of Britney's concert at the Burswood Dome in the Western Australia city of Perth, saying they were disappointed by the lackluster performance and Spears's lip-synching during her two-hour show. Spears gave Perth fans a generic welcome, never mentioning their city by name. "What's up Australia?," she said from the stage. "How you feeling tonight? It's so good to be here tonight. Your country is beautiful."

One disgruntled concert-goer, Wendy Di Renzo, 36, said she paid $148 for her ticket. "It was so impersonal. She did not interact with her audience," she says. "There were no big TV screens projecting the action, so if you didn't know Britney, you might have even doubted it was her."

Meanwhile, politicians in three Australian states – Western Australia, Victoria and New South Wales – have called for new laws to force music promoters to disclose whether a concert will be live or lip-synched.

Source: http://www.people.com/people/article/0,,20318419,00.html