I think it's AC/DC. And soul powered because of the answer to your next surmise. And yes, yes, yes to all. Especially Bobs. Especially. Bobs.

"Oh-oh, yes, I'm the great smu-smudger
Pretending that I'm smudging so well
My need is such I smudge too much
I'm a smudger, but no one can tell

Oh-oh, yes, I'm the great smu-smudger
Adrift in a world of my smudge
I've smudged the game but to my real shame
You've left me to smudge all alone"