This year's event is scheduled to take place on the weekend of July 29-August 1 at Cumbria's Lowther Deer Park.
Since its release, ‘Naïve’ has amassed over 250 million streams and was certified platinum three times in the UK.
The British indie rock band from Brighton founded by Luke Pritchard, Hugh Harris, and Paul Garred have achieved international success.
Last year's event saw headlining sets from Queen + Adam Lambert, The Killers and Arctic Monkeys.
The Kooks have announced a spring 2017 greatest hits tour of the UK and Europe.