Madonna seems to have 'teased' a new song called 'Messiah' via the medium of — YOU KNOW IT — Instagram.

Firstly she popped this picture online with the caption, "Coming soon.….…#promise #keep#sorceress#deep".

'#deep'.

Then she backed that up with a short video of some people playing some dramatic-sounding strings and included a 'messiah' hashtag.

So there we have it.