The Chemical Brothers, Disclosure and Gorillaz will also headline the August festival, set across two weekends
Ellis said he "got spooked" by the 2019 Bad Seeds album
The Finnish event returns next summer
Tickets go on sale this Friday
'The Little Thing', according to Cave, was written for his three-year-old neighbour
"We can’t wait to welcome festival-goers and music lovers back after three long years," organisers said in a statement
"The ‘forgetting’ aspect of grieving is something that is only just starting to come to light"
"It is a beautiful, heartfelt hallucination of a film"
A frighteningly good set of super spooky tunes to fulfil all your Halloween listening needs
Check out our exclusive 'In Conversation' excerpt from Cave sharing his fondest memory of former bandmate Mick Harvey