One of them being a cover of "The Usurper" by Celtic Frost.

Vanity/Nemesis is a 1990 album by Celtic Frost.

Its early influences were from bands such as Celtic Frost and Trouble.

On stage, Celtic Frost play with an additional tour guitar player.

In early 2007, Celtic Frost began writing material for a new album, possibly due for release in 2008.

Fischer has also said that his new band will sound similar to the direction Celtic Frost took on their 2006 album, Monotheist.

As Celtic Frost changed their sound throughout their career, their exact genre has been a topic of debate.

The heavy metal band Celtic Frost.

They later toured Europe in support of Celtic Frost and Anthrax.

Other groups soon followed suit, including Hellhammer's later incarnation Celtic Frost.