Written by Björk and Thomas Knak.
About the co-writer: "I had to go to Denmark for a year. There was nothing going on. I was literally lying on the beach, looking at the ocean, with a ghetto blaster listening to Thomas Knak/Opiate's album. I realised he was from Copenhagen. I just called him up."
"The lyric to 'Cocoon' was a whole diary, then I had to edit 90 per cent of it out. It's very hard to explain… read more