Sia has made a brand new song called 'Angel by the Wings' available online today.

The Aussie pop star's latest effort is taken from the soundtrack of new film 'The Eagle Huntress', a Kazakh-language documentary film telling " the real-life story of a 13-year-old Mongolian girl named Aisholpan attempting to be the first female eagle hunter in her country."

Hear the 'soaring' ballad below: