Ian Thorpe and his boyfriend are hoping to get as many Australians as possible to vote in favour of same-sex marriage.
Politicians in Australiaâ€™s Senate have repeatedly shot down attempts to hold a referendum on equal marriage. In 2016, the Liberal Party was re-elected with a promise that they would let voters decide on same-sex marriage through a popular vote.
However, the vote was blocked, and the result could have technically been ignored by lawmakers anyway. The government is now going to hold a plebiscite to gauge public opinion on the issue.
Ian Thorpe â€“ a five-time gold medal winning swimmer â€“ has unveiled a new video with his boyfriend, model Ryan Channing, in a bid to get people to update their electoral details so they can show their support for same-sex marriage.