Oliver Heldens offers glimpse of Knife Party collaboration at Tomorrowland Oliver Heldens played out his elusive collaboration with Knife Party during his Tomorrowland set, which was first revealed in 2015. Related Posts: Flux Pavilion and Turin Brakes reach for collaborative trifecta with ‘I Will Stay’ Grabbitz and NGHTMRE unveil emotive, bass-fueled ‘Bruises’
