At one point, it was even tough enough to be the title of heavy metal band. Rainbow.
Rainbow was a big metal band from the mid-70's helmed by the legendary Richie Blackmore and Ronnie James Dio. While never as big as their other projects - Black Sabbath or Deep Purple - the band put out some important material and were a big part of the evolution of Metal.
Dio died a few days ago of cancer. As one of the true elder statesmen of Metal, he helped define an entire genre of music and played a critical role in the popularization of heavy metal. He's also credited for really making the whole "devil horns" thing popular, too.
Dio's "Last in Line" was one of the first music videos I remember seeing as a kid on the then-new MTV (Music Television). I was captivated by the world he had created for the video; a comic book-inspired hell, creepy characters, a giant, beckoning Satan and killer video games. (Not "killer" as in, awesome but "killer" in that when you lost, you were electrocuted. So cool!)
I pulled up "Last in Line" and it is as awesome as I remembered. Meeno Peluce!
And I just noticed this! Have a look at the 1:15 mark. Tell me that is not Bobcat Goldthwait presaging his role in Scrooged!