Nick Cave collaborator and Bad Seeds multi-instrumentalist Warren Ellis will make his authorial debut in September, with a book titled Nina Simone’s Gum.Set to be released in the UK on September 2 via Faber & 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.As the story goes, an awestruck Ellis snuck onto the stage after seeing Simone perform, taking a piece