It's late and I don't have the energy or mental capacity to write anything coherent, let alone eloquent, but I've had this one in my back pocket for a while: "Rock Box" by Run-DMC.
To me, this is the spirit of hip-hop, and I think it's gone today. There are some very talented performers, but there's nothing in the music that I can connect with or relate to. I'll hear a song and like the backing track until the rapping starts, and then I'm done with it.
There's a homegrown quality to this video that I find really endearing. All the music videos are so elaborate now, I can just imagine a record company's reaction if a group submitting this as their promotional clip. (I don't know what's up with the Prof. Irwin Corey crap at the beginning; just ignore it.)
What was it about the '80s? I'm so glad I'm old enough to have lived through it...