Crystal castles one of the best experimental electronic music. Consisted of a producer Ethan kath and a vocalist Alice Glass.

The band was formed in December 2003 as a solo project started by Ethan Kath. Ethan later discovered Alice Glass singing in her noise-punk band, and thought he had found the "missing ingredient" to his music. In 2004 Ethan gave Alice 60 instrumental tracks. In April 2005 Alice Glass recorded vocals over five of these new instrumentals. The microphone test for this recording session was secretly recorded by the studio's engineer and was later released as the band's first single, "Alice Practice".

A new CD has been created called Crystal Castles (II) which was released in 24 of May of 2010, with new songs like: Celestica, Baptism, Vietnam,...