Clandestine Blaze is a one-man black metal band formed by Mikko Aspa in Lahti, Finland in 1998. Aspa cites Darkthrone, Burzum, Beherit and Bathory as key influences. Aspa is also currently involved in many other projects, such as Stabat Mater, Creamface, Fleshpress, A.M., Grunt, Clinic Of Torture, Alchemy Of The 20th Century and Nicole 12.

Aspa is also the owner of Northern Heritage, a record label that has released albums by Baptism, Behexen, Deathspell Omega, Drudkh, Hate Forest, Ildjarn and Satanic Warmaster among others. In addition, Aspa is the owner of CF Productions (which produces the Erotic Perversion magazines and Public Obscenities videos) and Freak Animal Records (which is a power electronics/noise label).