Tune was born in Brisbane and educated at St Paul's School, Bald Hills and played his junior rugby for Brothers/Teachers North.

[1] He played for the Queensland Reds in their inaugural Super 12 season in 1996, making his debut against the Highlanders.

Tune was an important member of the national side that claimed the 1999 Rugby World Cup in Wales, even scoring a try in the final against France.

He took a commentating position on Network Ten alongside Rupert McCall and former teammate Ben Darwin.

in 2013, Tune went public about his mental health issues and suicide attempt (resulting in his being sectioned for 4 weeks), reporting, "I can honestly say I am now a relatively content man, who can actually get excited about a future I never thought I'd have.