RAINBOW flags blocked out the odd religious poster in Martin Place on Thursday as hundreds of gay marriage activists celebrated the launch of the national GetUp equality campaign.
Led by women's magazine Marie Clare, the campaign is aimed at getting as many Australians as possible to sign a petition calling on the Federal Government to legalise same-sex marriage.
Celebrities including supermodel Megan Gale, actress Rachel Taylor and comedian Magda Szubanksi are among those who have signed the petition which will be sent to Canberra in the coming months.
While there were few protesters present at the Sunrise studio launch, Australian Marriage Forum spokesman Jim Wallace was doing some campaigning of his own behind the scenes.
In an email sent out to thousands of church groups across the country, Mr Wallace urged his supporters to send messages of disgust to Sunrise producers and their sponsors JetStar and Accor Hotels.
"That a TV current affairs show, let alone TV station, should take sides in such a highly contentious issue in the public square is disgraceful," the email reads
"What it says for the respect they have for your and my opinion, even our values, is extremely disappointing and we need to register our disappointment."
A motion calling on the Federal Government to alter the Marriage Act to allow for same-sex marriage was passed in the NSW Upper House last week.
More information on GetUp is available at ido.org.au/campaign.