Before crowds flock to Stanthorpe for the Muster on Sunday 6 October, the unique prize will be auctioned off on Graysonline.
All funds raised from the auction will be donated to RACQ CareFlight Rescue.
The lucky winner will sing Troy’s classic hit Country Is live on stage with the legend himself.
CareFlight’s Suzie Washington says the charitable service is always surprised at the unique ways people raise money.
“We’ve had some interesting fundraisers in our time, but this is by far one of the most unique and exciting,” she said.
“The prize is ideal for country music fans, budding singers or could be a brilliant gift for the person who has everything,” Ms Washington said.
The auction opens on Friday 30 August and the lucky winner will be announced on the Mountview Music Muster website on Friday 27 September.
People can bid on the prize by visiting mountviewmusicmuster.com.au and clicking the Graysonline link.
The Mountview Music Muster is an annual event held at the picturesque Mountview Wines Vineyard in Stanthorpe.
Country music superstars Troy Cassar-Daly and McAlister Kemp will headline a roster of talented country music artists throughout the weekend.