A pair of messages purporting that Britney has joined the “Dark Side” were posted to the singer’s account on Thursday.

“I give myself to Lucifer every day for it to arrive as quickly as possible. Glory to Satan,” reads one message.

A second read: “I hope that the new world order will arive as soon as possible! –Britney.”A while later, another message was posted.

“Britney’s twitter account was just hacked,” this one said. “The situation has been resolved and we apologize for any offense the hacker’s messages caused.”

The Tweets have still yet to be removed.

Britney is currently touring Australia, where she has caused controversy by miming through recent gigs.

Brit has a message for critics of her first tour of Australia after it was reported that fans walked out of the pop star’s Australian performance last weekend, describing it as boring, stiff, and filled with lip-synching.

“I hear there is a lot of controversy in the media about my show,” Spears said in a statement this week. “Some reporters have said they love it and some don’t. I came to Australia for my fans.”

Britney, 27, is rebuilding her career after a high profile meltdown in 2008.

“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,” Mayer posted on his Twitter account Sunday night.

Paul Dainty, the promoter of Spears’ tour, has rushed to her defense.

“Britney is aware of all this and she’s extremely upset by it,” Dainty told The Australian on Monday. “She’s a human being. I’m embarrassed, with such a big international entourage here with Britney, to be part of the Australian media when I see that kind of totally inaccurate reporting.”

Dainty says suggestions that fans stormed out of the show as early as the third song after paying between $200 to $1,500 to see the 27-year-old singer are “total fabrication.”

Britney performed to over 17,000 fans at the Perth Burswood Dome last night, but thousands of disgruntled fans — some having paid up to $1,500 per ticket — reportedly stormed out of the Australian debut of The Circus concert, infuriated by the pop singer’s “appalling” performance on stage.

“It was just really bad,’’ Kathy Wright,32, told the Sydney Herald on Friday. “We are really big Britney fans but it was crap,” her friend Josh Blee piped in.

“I thought after the music awards she would make up for it with a wicked concert, but she has let us down,” he said.

Other fans complain they could barely see the show from their seats.

“She is a little dot on the stage,’’ says Maria Camody, who was disappointed that the giant screens peppered throughout the arena did not show any vision of Spears performing.

The reality TV star is searching for the perfect starter estate after tying the knot with the Lakers star after a four week courtship and she’s got her eye on the exclusive gated community of Summit Circle in Beverly Hills.

“I’m going to see Britney Spears’ old house – I heard it’s to die for. Hopefully it is! I hope it’s good because then I can just say, ‘Yeah, I found it’, and we can move in,” the socialite reveals in the Nov. 16 issue of OK! Magazine.

In fact, Khloe’s desperate to find a place to call home — she and Lamar have been moving from hotel to hotel in Los Angeles since getting married last month.

Britney Spears and her entire “Circus Tour” touched down in Australia Thursday morning.

“Longest flight ever but we had a great time,” Britney Tweeted early Thursday. “Really cool plane and the V staff took great care of us. So excited to be here!”

The pop tart will take the stage in nearby Perth for the first of 15 concerts Down Under on Friday. Tickets are going for up to $1,360 for her shows.

Britney’s Australian “Circus” crewreportedly consists of 225 crewmembers, 45 band members and dancers, and 15 circus performers – plus 150 local workers that are hired in each city that the show plays.

The 17-track Singles Collection will come in two editions – a standard version and the massive Ultimate Fan Box Set, which include each of the star’s 29 singles in its own slip sleeve case plus a DVD of her music videos.