The Crucial Conspiracy (by The Dingees , saxophone, theremin, and vocals) 2003 - Barb4ry (by Ez3kiel, vocals on "Thought") 2004 - White Trash Beautiful (by Everlast , theremin on "Broken") 2006 - The Sweet Escape (by Gwen Stefani , saxophone on "Fluorescent") 2006 - " Big Bang (by Enneri Blaka ,