Two of the Coalition's leading conservatives have been named as "special guests" at $150-per-head dinner being held by anti-Islamic group, the Q Society of Australia.
Senator Cory Bernardi and MP George Christensen are set to appear at the "In Defence of Freedom of Speech" dinner in Melbourne on February 10, according to the Q Society's website.
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The specific location of the dinner in Melbourne's "inner eastern suburbs" is being kept under wraps, to be disclosed only to ticket holders.
A similar event will be held in North Ryde in Sydney on February 9 at another undisclosed location, with guests to reportedly include Australian rock legend "Angry" Anderson, political cartoonist Larry Pickering and writer Gabrielle Lord.
Both events will raise money for the Q Society to fight a defamation case brought against the organisation and two of its members by Mohammed El-Mouelhy, the head of the Halal Certification Authority
"This is a landmark case with considerable ramifications for freedom of expression in Australia," the Q Society's invitation said.
"This is an excellent opportunity to mingle with outspoken advocates for Liberty and Western values and show your support for this important cause."
The $150 ticket price for the event is said to include "a sparkling welcome, a variety of fine finger food and a generous serve of free speech".
The Q Society was active in opposing the Bendigo mosque, in May 2014 holding a meeting in the regional city to talk to locals about how to fight to mosque plan.
The Q Society describes Islam as a totalitarian ideology, saying history has shown that Muslims will not embrace other cultures.
"We already see government, workplaces and schools recognising Islamic holidays, daily prayer times and special leave for hajj pilgrimage, amongst a myriad of other demands," it says.
In recent weeks Senator Cory Bernardi has been rumoured to be preparing to form a breakaway conservative party movement, after earlier launching a new Australian Conservatives group, amid his criticism of Prime Minister Malcolm Turnbull's performance.
Senator Bernardi has posted a photo of himself wearing a "Make Australia Great Again" cap, which is a rip off of Donald Trump's successful campaign slogan. The senator has also previously said that Trump's election was a catalyst for realising he needed to be part of change to the political climate in Australia.
Queensland MP George Christensen told Parliament in September that he was concerned about "the rise of Islamism in this country and those who are willing to commit violence in the name of that ideology".
"I think we should consider some tighter controls on borders such as restricting immigration from countries where there is a high prevalence of violent extremism and radicalism," he said.