Sia has made another new song from her new album available online - and it's another track that was co-written with Adele, with the intention of going on her album '25'.

It's called 'Bird Set Free' and will instead be on the tracklisting of 'This Is Acting', which is out in late January.

She had earlier shared 'Alive', another song which was intended for Adele but which Sia decided to keep for herself.

Hear 'Bird Set Free' below: