Sia has treated her fans with a new song.

The Australian singer and songwriter unleashed the track 'Chandelier' online today (March 17).

It is now available to download in the US, whilst it will be released in the UK on June 1.

Sia is due to follow it up with a full album this summer, building on from her 2010 effort 'We Are Born'.

The singer meanwhile has written such songs in the past few years as Rihanna's 'Diamonds' and Britney Spears' 'Perfume'.

She has also featured as a vocalist on the likes of David Guetta's smash hit 'Titanium'.