Brightest Blue includes a number of recent releases alongside a plethora of new songs, with the album being set in two parts, 'Brightest Blue' (executively produced by Ellie Goulding & Joe Kearns) and 'EG.0' respectively. Across the two halves Ellie enlisted a number of writers and producers to help create the finished product, including the likes of Tobias Jesso Jr., Starsmith, ILYA, serpentwithfeet, Patrick Wimberly (of Chairlift) and Jim Eliot amongst others.