The Sock Puppet Parody guys have kept themselves busy parodying songs and bands, be it Slayer’s “Raining Blood” parody or their version of Rage Against the Machine’s “Killing in the Name.” This time, however, they’re doing a holiday song in the style of Immortal. “Immortal Christmas” is a black metal song about Santa Claus. Oh yeah, and windmilling sock puppets. And what we’re most excited about is that we’ve been using the “Hail Santa” hashtag for our holiday shirt since before this came out , so I guess we’re the innovators here. If you want to pick the song up, you can do it on Bandcamp. And if you want to pick a shirt up, just head to metalinsider.spreadshirt.com.