Aoki, who recently teamed up with Louis Tomlinson on his debut solo single "Just Hold On", will take to the stage in Chelmsford, Essex on August 19 and in Staffordshire on August 20, reported Contactmusic.
Also performing are Gorgon City, who will play the headline slot on the opposite days with Hannah Wants and Example & DJ Wire.
Other confirmed performers include, Dizzee Rascal, Gorgon City, Anne-Marie, Jonas Blue, Sigma Liva, The Vamps, Calum Scott, JP Cooper, Jack Savoretti, Scouting For Girls, Krept & Konan, Busted and Raye.