Kylie Minogue attended the Aria awards with her fiancé and thanked fans who've been supporting his "Say I Do Down Under" campaign.
The couple gave a passionate speech about the campaign to legalise same-sex marriage and let those in the LGBT community that they are "not alone" in their fight.
"It's Josh's first time in Sydney," the 48-year-old songstress told the crowd. "We are here to introduce a shining light in there Australian music industry, but we are also here to say thank you to everyone who supported Josh's campaign for equality."
"Thank you sweetheart," replied Sasse, 28. "This is more than just a movement. This is people's lives, and we want to say to every single member of the LGBT community - you are not alone.
"You have a voice. If we all stand together, we can bring Australia back on the right side of history and make 2017 the year that we all say, 'I do', down under."
The Aussie queen of pop ditched her usual glamorous gowns to shine a light on the campaign by donning a simple Marriage Equality t-shirt. Sasse also wore a matching tee.