Advocates for the Voice to parliament nailed the brief with a new advertising campaign featuring music icon John Farnham, industry figures say, pointing to the potential to win over older, less engaged voters.

The Uluru Dialogue appealed to history on Sunday with a new short film using Farnham’s 1986 hit You’re the Voice, matching the song with feel-good moments from Australian political, sporting and cultural history, including Cathy Freeman’s 2000 gold medal and the America’s Cup.