George Clinton, Nils Frahm and Brandt Bauer Frick Ensemble will also perform at the Oxfordshire event.
Björk will headline this year's Wilderness Festival in Cornbury Park, Oxfordshire, running August 6th through 9th.
The Icelandic artist recently released her latest record, Vulnicura, which Angus Finlayson described as "Björk's best album in years." She'll be joined at the festival by live acts Nils Frahm, Roisin Murphy, Brandt Brauer Frick Ensemble and Hercules & Love Affair, while funk legend George Clinton will perform a Return To The Mothership show with Parliament and Funkadelic.