Bjork and Radiohead frontman Thom Yorke will join forces for Bjork's new single 'Nattura.' Earmarked for an October 20th release, proceeds from the song will benefit the non-profit organization of the same name dedicated to protecting Iceland's environment.

'Nattura' is described as "more of a protest and rallying cry than a lecture." What's more, the organization has given the one-time Sugarcube the opportunity to take aim at an Icelandic senator who calls her position on the environment "childish." She offers a lengthy essay on the subject here.

Meanwhile, this isn't the first time Bjork and Yorke have worked together. The singers first teamed back in 2000 for 'I've Seen It All,' which was part of the soundtrack to her film 'Dancer in the Dark'.