Photo by Erez Avissar

Yesterday, Crystal Castles released a new song called "Frail". Originally, the song was accompanied by a statement from Ethan Kath that was critical of former singer Alice Glass, who left the group last year. "i wish my former vocalist the best of luck in her future endeavors," it read. "i think it can be empowering for her to be in charge of her own project. it should be rewarding for her considering she didn't appear on Crystal Castles' best known songs." Kath quickly retracted the statement.

Now, Glass has responded to Kath on her Twitter, directly challenging his assertions:

Here's the video for "Plague":

"Crimewave":