The Black Keys, Editors and Kelis have been confirmed to play Latitude 2014.
Headliners The Black Keys join already-announced main acts Two Door Cinema Club and Damon Albarn, who will play alongside Bombay Bicycle Club, Tame Impala, Royksopp & Robyn, Haim and Billy Brag.
British rock band James, alternative dance group Crystal Fighters and American rockers The Afghan Whigs have also been added to the newly announced line-up.
They will be joined by Malian band Tinariwen, a group of Tuareg musicians from the Saharan region of northern Mali.
Recent chart-toppers Clean Bandit will be among the acts playing the BBC Radio 6 Music Stage. They will be joined by Scottish post-rock band Mogwai, Swedish singer-songwriter Lykke Li and Irish musician James Vincent McMorrow.
Elsewhere at the festival, Dara O’Briain will headline the comedy arena, joined by Milton Jones, Al Murray, Josh Widdicombe and Marcus Brigstocke.
The Royal Shakespeare Company, Sadler’s Wells and English National Ballet will be performing in the theatre and dance arena, while Salon London will be hosting the literature tent.
Latitude runs from 17-20 July at Henham Park, Southwold, Suffolk. Tickets are on sale now. For the full line-up go to www.latitudefestival.com