Gabrielle Aplin Daughter London Grammar St Vincent Emily Wells Birdy Jesca Hoop Lucy Rose Nina Nesbitt The Tiny Big Deal Jasmine Thompson Lewis Watson Gabriel Kahane Elena Tonra Hudson Taylor Ben Howard Ed Sheeran James Bay Owen Pallett Orla Gartland Sara Bareilles Ingrid Michaelson Alex & Sierra Foxes Aurora Aksnes Ruth B James Vincent Mcmorrow Hozier Benjamin Francis Leftwich Laura Marling Billie Marten Lucy Spraggan Marketa Irglova Charlene Soraia Nosoyo Kate Mcgill Ry X Michael Kiwanuka Angus & Julia Stone Emily Hearn Ben Cooper Emma Blackery Chord Overstreet Wolf Alice Aquilo Ella Henderson Civil War Kate Nash