Julie Christmas spent the majority of the 2000s as the lead vocalist for the noise rock band Made Out of Babies and the short-lived post-metal supergroup Battle of Mice, the latter of which featured members of The Book of Knots, Neurosis and Red Sparowes.

She sang on three studio albums with Made Out of Babies — Trophy (2005), Coward (2006) and The Ruiner (2008) — before the band went inactive for a few years and announced that it had officially broken up in 2012.

[3] Christmas is involved with Spylacopa, an experimental musical project headed by Candiria guitarist John LaMacchia, along with Greg Puciato of The Dillinger Escape Plan and Jeff Caxide of Isis.

Julie Christmas released her debut solo album titled The Bad Wife in late 2010 through Rising Pulse Records.

The album's lead single "July 31" was used in the final credits of the 2009 Cuba Gooding Jr. film Wrong Turn at Tahoe.

[8] Christmas appeared as a featured guest on the Swedish post-metal band Cult of Luna's entire seventh studio album titled Mariner, released on April 8, 2016.