Grindcore / electro / whatever-core group Narwhal Decimation hits all the right notes in this blasphemous Christmas album.
"Frøsty Da Snømang" is a bouncy, 808-driven techno piece, and "Silent Night" is anything but, with chugging power chords. "White Kwanzaa" (lolwut) is more in the black metal vein, and a couple tracks ("S▲lem Cl▲us Is Coming to Town", for instance) are downright witch-housey.
You need this.
Here it is: