Also confirmed in this first wave of acts are Ella Henderson, Sigma, Jess Glynne, Fuse ODG, Andy C, Sub Focus and Jaguar Skills. The Saturday night campers warehouse after party will be headlined by DJ EZ.
More acts will be announced in the coming weeks including a second big name headliner.
Following on from the success of 2014, Sundown Festival returns to the Norfolk Showground from Friday 4th to Sunday 6th September 2015, with another line-up showcasing some of the best in pop, dance and urban acts. Tickets go on sale 10am Wednesday February 11th. For tickets and more information, see our Sundown guide.