In concert, they play a cover of "The Phantom of the Opera" with Eric Adams (Manowar) and Maria Breon on vocals.
The band performed at Magic Circle Festival 2007,[http://www.magiccirclefestival.com/volume1/ Magic Circle Festival] toured in Bulgaria and appeared at Magic Circle festival 2008 performing their usual set as well as 2 songs from their debut album, which had not yet been released, and a cover of Dio's classic song "Holy Diver".
Their first EP Apocalypse was released on March 23, 2007.[http://holyhell.com/ HolyHell - Apocalypse]
Their first full-length album, Holyhell, was released on June 26, 2009.