His new single "Jingle Hell" might be a little work un-friendly, but the B-Side is "My Way", so, that's cool.
You've seen him in "Lord of the Rings" and "Star Wars," but have you heard him sing praise to the demons of Hell?
Actor Sir Christopher Lee has released a new heavy metal single called "Darkest Carols, Faithful Sing," just in time for the birth of the anti-christ.
The 92-year-old's metal work is not new, however. He released the symphonic metal album "Charlemagne: By the Sword and the Cross" in 2010 and another, "Charlemagne: The Omens of Death" in 2013.
And he's been recording music alongside his acting career since the '80s.
Last year, he released a "naughty" Christmas song called "Jingle Hell."
"It's light-hearted, joyful and fun. It's a band singing on how metal should be played, the effect it has on the band and its listeners," he says of his latest release.