Despite being busy with multiple Nick Cave collaborations and his wildlife sanctuary, Ellis has also found time to work with Mazzy Star's Hope Sandoval in the studio.

In a now-deleted tweet shared on Sunday (23 January), Ellis wrote, "Been in the studio working on some new Hope Sandoval tracks. What a voice she has."

Earlier this month it was revealed that Ellis annd Cave will star in Andrew Dominik's new documentary This Much I Know To Be True, which will explore their creative relationship, as well a tracks from their recent albums Ghosteen and CARNAGE.

Sandoval's latest release was 2017's Son of a Lady EP with The Warm Inventions. She also featured on Psychic Ills' 2021 album Songs for Tres.

This Much I Know To Be True featuring Nick Cave and Warren Ellis is expected to arrive later this year, but a specific release date is yet to be announced.