No, not Johnny Cash. It's the other type of Man In Black. The one with the aliens and the spying and the black helicopters and the flyable (say it like Jerry Lewis).
Not sure if he's using his ray gun to wipe someone's memory, or eliminate some witnesses, if you know what I mean.
I deliberately made all the colors here very pale and washed out, and then made the ray gun very bright and vibrant so it would pop. Why? Um... because stop asking questions, that's why.
Here's the original pen and ink sketchbook doodle.
And here's the tighter digital sketch. It's pretty close to the final drawing, with the two exceptions. In the final drawing I changed the angle of the ray gun so it's more level, and I enlarged his head quite a bit because the proportions were bugging me. That's one of the advantages of working digitally!
The Man in Black was drawn in Photoshop on the graphic tablet.