Watch: FEAR FACTORY Joined By BUTCHER BABIES' HEIDI SHEPHERD For 'Martyr' Performance In Munich

BUTCHER BABIES' Heidi Shepherd joined FEAR FACTORY on stage last night (Friday, November 24) at the Backstage Halle in Munich, Germany to perform the song "Martyr". Fan-filmed video of her appearance can be seen below (courtesy of the TrulyStuckerYouTube channel). Last month, FEAR FACTORY kick...