Nick Cave collaborator and Bad Seeds multi-instrumentalist Warren Ellis has opened up about his forthcoming memoir Nina Simone’s Gum ahead of its publication early next month.Set to be released in the UK on September 2 via Faber, the non-fiction work is about a piece of Simone‘s chewed gum that Ellis acquired in 1999, when the jazz singer performed at London’s Meltdown Festival – which Cave curated that year.Following Simone’s performance, Ellis climbed onstage taking a piece of gum from her