CocoRosie

CocoRosie is an American musical group formed in 2003 by sisters Sierra Rose "Rosie" and Bianca Leilani "Coco" Casady. 

Originally a duo, the group was formed when Bianca, who was living in New York City at the time, made an impromptu visit to Sierra at her Paris apartment, reconnecting with her for the first time in ten years. The sisters began creating music together, singing over instrumentals produced using a combination of traditional instruments and found objects, most notably children's toys.

The group's music has been described as folktronica, freak folk and "New Weird America", and incorporates elements of pop, blues, opera, electronica, and hip hop.