In Sorte Diaboli is the eighth studio album by Norwegian symphonic black metal band Dimmu Borgir, released in 2007. It is the band's first concept album. A site on the Nuclear Blast website was created for In Sorte Diaboli, in which a new promotional photo can be seen and an audio sample can be heard. This would be the last album by Dimmu Borgir to feature ICS Vortex, Hellhammer and Mustis.
