Pulled Apart By Horses, Caribou and Mount Kimbie are among the latest bands to be added to the Offset Festival line up.
Anna Calvi, Banjo or Freakout, Bitches, Blurt and Bunny Come will also appear alongside Calories, Castrovalva, Cold In Berlin, Cold Pumas, Colours, Connan Mockasin and Esben and the Witch.
Ghost of a Thousand, Gramme, Holy State, Horse and Condor, Hyrst, Koudlam, La La Vasquez and Meddicine have also been confirmed to play over the weekend with help from Not Cool, Novella, Oh! Gunquit and Paper Crows.
Other names announced today (Monday) includes Peepholes, Please, Proxy Music, Sauna Youth, Screaming Tea Party, Slapper and Special Recreation Wish Club.
Team Ghost, Teeth of the Sea, The Bridport Dagger and The Eyes In The Heat will hit the London bash too along with The Neat, The Receeders, The Rifle Volunteer, Thomas Tantrum, Visions Of Trees and Xcerts.
Among the acts already announced are headliners Mystery Jets, Liquid Liquid, These New Puritans and more.
Tickets are available priced at £55 for early bird or £65 at normal price. Day tickets are priced at £29.
Click here to buy Offset tickets.
Offset Festival 2010 will take place at Hainault Forest Country Park, Redbridge, London from 4-5 September.
Offset Festival will have seven stages with around 200 artists performing and a huge vintage clothing fair, Victorian fun fair, village fete, psychedelic sports day, nature treks, performance art area, craft workshops, delicious food stalls, fifties hairdressing salon and even a rare breeds farm.