This year's edition takes place on Saturday, July 29 at Three Mills Island, Stratford.
After only 3.5 days, the campaign has already raised almost £150,000 from international supporters.
Hotflush will release 'Folding Time' on May 20.
Zip, Sonya Moonear, and Juan Atkins and Moritz Von Oswald are also set to play on Memorial Day weekend (May 28 - 30).
The compilation features 12 main cuts from the duo's career.