Crystal Castles was a Canadian electronic music duo formed in Toronto in 2006 by Ethan Kath and Alice Glass. Known for their intense live shows and distinctive lo-fi, melancholic sound, they gained early attention with limited edition singles and later released four studio albums between 2008 and 2016. After Glass left the group in 2014, Edith Frances joined as vocalist. In 2017, allegations by Glass against Kath led to cancellation of their tour and the group's subsequent inactivity.