Formed in 2003 in Toronto, Ontario, Canada, Crystal Castles consists of producer Ethan Kath and vocalist Alice Glass. They are named after the lyrics "The fate of the world is safe in Crystal Castles" and "Crystal Castles, the source of all power" both from the theme song for She-Ra's fortress. They are known for their melancholic lo-fi sound and their explosive live shows. Their debut album was included in NME's "Top 50 Albums of the Decade".