It appears on the soundtrack of upcoming documentary film 'The Eagle Huntress'.

Sia has dropped a new song called ‘Angel By The Wings’ today (December 1).

The typically anthemic ballad is taken from the soundtrack to The Eagle Huntress, an upcoming documentary about a Kazakh teenager who is learning her nation’s traditional art of eagle-hunting. Listen below.

Sia – Angel By The Wings by Mkhitar Pakhchanyan

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Sia also shared a new song recorded for a film soundtrack last month (November). Her Bollywood-influenced song ‘Never Give Up’ appears in the biographical drama Lion starring Dev Patel and Nicole Kidman.

‘Angel By The Wings’ and ‘Never Give Up’ follow a small batch of new material Sia released in October on the Deluxe Edition of her ‘This Is Acting’ album.

The Deluxe Edition, which dropped on October 21, added seven tracks to the original 12-track album. These includes Sia’s recent single ‘The Greatest’, which features Kendrick Lamar, and three previously unheard songs called ‘Confetti’, ‘Jesus Wept’ and ‘Midnight Decisions’.

‘This Is Acting’ was released in January and has so far peaked at Number Three in the UK and Number Four in the US. Sia, an in-demand songwriter as well as a chart-topping recording artist, revealed before its release that the album features songs she had written for, but had rejected by, other artists.

“I’m calling it ‘This Is Acting’ because they are songs I was writing for other people. So I didn’t go in thinking ‘this is something I would say’. It’s more like play-acting. It’s fun,” she explained.