Crystal Castles is a Canadian electronic experimental band formed in 2004 in Toronto consisting of producer Ethan Kath and vocalist Alice Glass. The duo is known for their chaotic live shows and lo-fi melancholic homemade productions. They released many limited vinyl EPs between 2006 and 2007.
In 2006, their first single/EP "Alice Practice" was released on vinyl. The release was limited to only 300 copies. "Alice Practice" would later be included on their debut album, Crystal Castles, released in 2008. Other singles from the album include "Crimewave", "Air War", "Courtship Dating" and "Vanished". The album received highly positive reviews and was listed on NME's "Top 100 Greatest Albums of the Decade" list at No. 39.