Jorja Smith, Ibeyi and Floating Points are among the acts added to this year’s We Love Green.
The festival will take place at Paris’ Bois de Vincennes between 2nd and 5th June.
Artists already confirmed include Gorillaz, Arlo Parks, Mac DeMarco, slowthai and Bicep.
Hundred Reasons, The Wonder Years, and Loathe are also among the new names announced.
King Gizzard & The Lizard Wizard, Unknown Mortal Orchestra, Future Islands and Wilco are headlining this year’s festival.
The 1975, Arctic Monkeys and Stromae are also set to perform.
The showcase event takes place in Slovenia in March.