Mogwai have contributed to an upcoming compilation titled Occupy This Album which you may be able to guess, is to benefit the Occupy Movement. The compilation will feature tracks from artists ranging from Willie Nelson and Patti Smith through to artists like Yo La Tengo and Ladytron. It's a 4 disc release featuring 99 tracks and Mogwai's track is called "Earth Division". You can stream it below via The Occupy This Album Soundcloud page.
Occupy This Album is set to drop on the 15th of May via Razor & Tie.