Cathy Freeman has joined the chorus of Australians calling for an Indigenous Voice to parliament.
In a new video for the Yes campaign, the Olympic champion is urging the public to vote in support of the referendum on October 14.
"I can't remember a time when change has felt so urgent, where momentum has been so strong," Freeman says.
"From small towns to big cities, something is in the air.
"I know all Australians feel it too.
"We have the chance to be part of a moment that brings people together, to work hard for something that we can all believe in.
"And right now, each of us can be part of something that really matters.
"To stand together and to show our support for Australians who need it the most.
"To recognise Indigenous peoples in our constitution for the very first time, to give our kids the very best start in life, an equal start in life.
"And to open our hearts and change our future.
"I'm voting yes, and I am asking that all Australians do too. So please stand with me and write Yes on October 14."
Freeman was born in Mackay in Queensland in 1973. Her mother is of the Kuku Yalanji people of Far North Queensland and along with Cathy's grandmother was born in the Indigenous community of Palm Island.
Her father was born in Woorabinda and is of the Burri Gubba people of Central Queensland.
This past weekend an estimated 200,000 Yes supporters marched across the country – in major metropolitan cities and regional towns alike, four weeks out from the vote.
The vote on October 14 will be Australia's first referendum since 1999.