Sia, Karen O, members of Green Day and Radiohead, and over a hundred other musicians, have signed an open letter written by Kate Nash to President Obama regarding the North Dakota Access Pipeline:
We are writing to express our shock at the treatment of the people of Standing Rock Sioux in North Dakota. We are deeply disturbed by the police actions that have been taking place, where non violent protests have been and continue to be met with extremely aggressive tactics including; being shot with water canons in below freezing temperatures, chemical weapons, rubber bullets, and attack dogs. These are the same inhumane methods used during WWII and the Civil Rights Movement.