Tick, tock, tick, tock, tick tock. For every passing second we get a step nearer to tonight's main event.

It's been a long slog for our final three. They've been up they've been down. They've been praised and criticized, happy and sad, but tonight that all counts for nothing.

Tonight is about leaving it all out there... guts or glory!

They have four songs each to prove to the great Aussie public why they should be crowned the next X Factor champion.

Each act will sing their audition song again, their best song of the series so far, their winner's single and duet with one of our superstar performers.

Johnny

Do You Remember - Jay Sean – Audition song

Sir Duke – Stevie Wonder – Song of the series

You Don't Wanna Know – Winner's single

Superstar duet

Andrew

Someone Like You – Adele – Audition song

Dakota – Stereophonics – Song of the series

This Much I Know - Winner's single

Superstar duet

Reece

Come Get Some – Rooster – Audition song

Dream On – Aerosmith – Song of the series

Good Night – Winner's single