Warren Ellis has revealed that he is working on new music with Mazzy Star’s Hope Sandoval.According to The Line Of Best Fit, a now-deleted tweet by the musician was shared on Sunday (January 23) teasing the collaboration.Ellis reportedly wrote, “Been in the studio working on some new Hope Sandoval tracks. What a voice she has.”Since the tweet’s deletion, there have been no further news about the collaboration from Ellis or Sandoval.