He joins the previously announced Belle & Sebastian, Jon Hopkins and Roisin Murphy.
One of 2014's big breakout acts, the 21-year-old - yeah, we know, disgustingly young - bagged a UK number one and got to number five here with his debut Wanted On Voyage album.
He played an absolute blinder at Longitude followed by an Academy headliner in October, which confirmed that he's going to be seriously ginormous.