Alt-J (∆) announced on Facebook today that they will be releasing a new EP on November 25 called Summer. Following the success of their debut album, An Awesome Wave, the new collection of tracks features remixes from Jim James, Dave Sitek, Odd Future's the Internet, Mumford & Sons' Ben Lovett, Hanz and a reworking of the band's breakout single "Tessellate" by Ben De Vries.