Roosevelt will play the Somersby Stage on 18 July, while London jazz group Ezra Collective will play the same stage a day later, and North London producers Gorgon City will take to the EDP stage on 20 July.
Today's new additions will celebrate the festival's 25 anniversary alongside Christine and the Queens, Shame, Jungle, Migos, Iron and Wine and Calexico, Masego, Cat Power, Charlotte Gainsbourg, Disclosure, Kaytranada, Superorganism, FKJ, The 1975, Metronomy, and Lana Del Rey.
Last year's festival saw performances from The xx, Travis Scott, Anderson .Paak & The Free Nationals, The Vaccines, Mahalia, and more. Check out what we did at the festival last year.
The festival's 25th edition will take place at Meco Beach in Sesimbra, which is south of Lisbon.