Sydney's world-famous New Year's Eve fireworks will go interactive with a smartphone-powered light show.
The light show, described by City of Sydney officials as a "world-first", will run through an app on iPhone and Android smartphones that will illuminate the screens with colour at scheduled intervals leading up to midnight.
The city is hoping to attract more than one million people to the harbour foreshore to witness the fireworks, and organisers want the crowds to hold their phones aloft to form a synchronised wave of colour.
App users will also be able to submit a word to be projected onto the pylons of the Harbour Bridge, which is typically the centrepiece of an evening's pyrotechnics.
The Sydney fireworks kick off global New Year's celebrations and are seen by billions of people worldwide.AFP