Kernaghan, who last week stopped short of opposing the use of his songs at Reclaim Australia rallies, offered his support for his fellow Australian of the Year on Facebook.

Sending my support to Adam Goodes - A great Australian, proudly indigenous and one of the greatest adornments to the game of footy. With you all the way mate. lk@adamroy37Posted by Lee Kernaghan on  Monday, 27 July 2015

Former Prime Minister Kevin Rudd, Victorian Premier Daniel Andrews and Greens MP Ellen Sandell also took to Facebook to back Goodes, who is sitting out of this week's game because of the booing controversy. 

It's unbelievable that 7 years after the National Apology that we are seeing today this revolting example of racism against Adam #Goodes #aflPosted by Kevin Rudd on  Wednesday, 29 July 2015

My challenge to the people of Victoria or those at the SCG this weekend is this: if the person next to you starts booing...Posted by Daniel Andrews on  Tuesday, 28 July 2015

This is such a disgrace. Australia can and should do better in 2015. Adam Goodes' resignation would be an incredibly sad chapter in race relations and AFL in Australia. We support you Adam!Posted by Ellen Sandell on  Tuesday, 28 July 2015       

Meanwhile, others took to Twitter to voice their opinion on the embattled player.