The festival takes place in Hackney in May, find out more here!
The track is taken from the band's upcoming album 'No Feeling is Final' - their first since 2014.
The re-issue will feature B-sides and remixes from the original release, as well as live versions of many of the tracks.
ArcTanGent have unveiled almost the entire line-up for the event, which is set to take place in August 2021.