CRYSTAL VIPER frontwoman Marta Gabriel joined death metal legendsVADER on stage this past Thursday, December 6 at 2Doors Club in Sosnowiec, Poland to perform the JUDAS PRIEST classic “Metal Gods”. A couple of photos of the collaboration, including the pre-show rehearsal, can be seen below.

VADER is currently headlining the “Back To Black Tour” of Poland and Czech Republic during which the band is performing the “Black To The Blind” and “Sothis” albums in their entirety. In January and February 2013, VADER will embark on a European headlining tour with support fromABORTED and BONDED BY BLOOD.

CRYSTAL VIPER‘s new album, “Crimen Excepta”, was released in April via AFM Records. The concept effort about holy inquisition, black magic and witches, where fiction is mixed with historical facts, was produced byBart Gabriel (SACRED STEELJACK STARR’S BURNING STARR).“Crimen Excepta” features two special guests: David Bower, vocalist ofHELL, appears in the title track, while VADER mainman Piotr “Peter” Wiwczarek can be heard in the cover version of the classic VADER song“Tyrani Piekiel”, which is available as the bonus track on the first, limited edition of the album.