CocoRosie is an American folk band. The members are sisters Bianca "Coco" and Sierra "Rosie" Casady. They have released five studio albums. These are La maison de mon rêve, Noah's Ark, The Adventures of Ghosthorse and Stillborn, Grey Oceans, and Tales of a GrassWidow. CocoRosie have also composed two film scores.
Sierra Casady was born in Iowa. Bianca was born in Hawaii. The girls lived with their mother when they were children. They moved to new towns almost every year. Sierra left home when she was around 14. She is a classically trained soprano.