Mars Volta, Go! Team to play Latitude
The festival, in its third year, will take place at Henham Park in Suffolk from July 17-20.
Franz Ferdinand, Sigur Ros and Interpol have already been named as headliners for the three-day festival. Other acts performing include Elbow, Death Cab For Cutie and The Breeders.
Latitude is similar in style to continental festivals as it hosts music, comedy, art, politics and literature.
This year's Comedy Arena will feature Ross Noble, Simon Amstell, Russell Howard and Bill Bailey.