Rizzle Kicks and AlunaGeorge also join the Spanish music event's line-up, which takes place on July 18-21 in Castellón.
China Rats, Deap Vally and Temples have been also been announced for the three-day event, with tickets on sale now.
They join previously confirmed acts Arctic Monkeys, The Killers and Queens of the Stone Age in the lineup, while Jake Bugg, Azealia Banks and Palma Violets will also play sets.
Benicassim 2013 weekend tickets are currently available for the special price of £145. VIP tickets are also on sale for £325.
Listen to Hurts' new single 'Miracle' below: