Nile Rodgers & Chic are set to headline Camp Bestival this summer.
BBC Radio 1 star Annie Mac and pop singers Max and Harvey have also joined the bill for the family festival in July.
Rodgers will headline on the Saturday night while fellow headliner Mac will take to the decks on Sunday night.
The artists join previously announced acts including Jess Glynne, The Human League, Sister Sledge, Sara Cox, Biq Shaq, Vengaboys, East 17 and Spice Girl Melanie C.
Camp Bestival curators Josie and Rob da Bank said: “We’re really proud to unveil two of the world’s biggest party starters in their own fields – Nile and Chic go back a long way with us and they’re going to have everyone dancing at Lulworth Castle.
“BBC Radio 1’s Annie Mac is one of the UK’s best DJs, tastemakers and a mama to boot so we know she’s going to press all the right buttons.
“Josie and I really do strive to make Camp Bestival not only the best family festival out there but also the ultimate way to kick off your summer holidays.
“This year we’ve got some whacking great headliners and loads of amazing family activities, we will be prioritising our teens to keep ‘em happy with a new screen free area avoiding technology – The Wild Tribe. See you in the fields.”
The festival, which also features family raves and silent discos, takes place at Lulworth Castle, Dorset, from July 25 to 28.