Now Ms Hauksdottir, who helped her daughter produce her first record at the age of 11, is hoping her action will mobilise opposition to the project.
"I'm more optimistic now than I was at the start of the hunger strike," she said.
"People are pledging their support and for me that gives me a lot of strength.
"I don't believe that Alcoa or the Icelandic Government should underestimate the will of the Icelandic people.

{ Hauksdottir. Ahh.}