They join Mumford and Sons, Glass Animals and Lucy Rose on Saturday on the main stage
Two Door Cinema Club have been announced as the special guests for this year’s Latitude Festival.
The Irish indie rock band will play through the hits on Saturday night, on the same day that Mumford and Sons headline.
Two Door’s addition follows yesterday’s announcement of additional bands, including The Jesus and Mary Chain and Mystery Jets.
The Saturday 15 July lineup also includes Glass Animals, The Very Best and Lucy Rose on the main stage, plus Jack Garratt and Declan McKenna elsewhere.
The latest single from Two Door Cinema Club is Lavender, released in February, just after their energetic UK tour.
Latitude Festival takes place at Henham Park in Suffolk from 13-16 July.
Tickets for the entire weekend with camping are presently £197.50 at face value. Day tickets are priced at £77.50.