Myuran Sukumaran and Andrew Chan, part of the infamous Bali Nine drug ring, were sentenced to death after spending a decade behind bars, while campaigners fought for clemency from Indonesian government officials.

The three actors were among the stars Down Under who joined forces for the Save Our Boys drive this week (begs27Apr15), appealing to Abbott to act immediately to stop the execution, but their efforts appear to have been in vain as eight prisoners, including Sukumaran and Chan, were killed by firing squad on Tuesday (28Apr15).

Meanwhile, rocker Axl Rose made his own last-minute plea to Indonesia’s heavy metal-loving president on behalf of Chan and Sukumaran.

In an open letter to Joko Widodo, the Guns N' Roses frontman wrote, "I appeal to you, Mr. President, to use your power in ways to strengthen international relationships between your country and others to show your country’s strength and allow the world to witness an extraordinary act of humanity and bravery on yours and your country's part."

Chan and Sukumaran were arrested in 2005 at Denpasar airport, and later received Indonesia’s standard death penalty for drug trafficking convictions. Reports suggest they were executed on Tuesday morning on the prison island of Nusakambangan.

Indonesian politicians have yet to confirm the news.

Axl Rose also asked for clemency for Mary Jane Veloso, whose life was spared after the person who allegedly recruited her into the drug trade surrendered to police.

Rose writes, "People make mistakes, sometimes big and horribly regrettable mistakes and sometimes more importantly people learn from their mistakes and make new choices, strive and succeed at true positive change. To not acknowledge and give such change the opportunity to prove it’s value would seem in this case a greater crime than those originally committed."