Mick Dylan singing his heart out to "I Got A Woman". Mick is a member of the Monkees tribute band, The Prairee Chikenz.
Song (YouTube): https://youtu.be/bfYpkeZ80eQ?t=38m47s
Another possible song: https://www.youtube.com/watch?v=gApmzSpZd10
Ballpoint pen for the initial sketch, coupled with pencil to give it a smooth monotone appearance.
Link
Madbassist
I read the tags and I noticed "Cocker" and I immediately thought to myself..."Joe Cocker?". Then I noticed he's a cocker...and that the title is a James Brown song.
Fantastic work.