Vintage Country (Music)

So my dad, one of my regular readers, sent me the following YouTube video in response to my post on Nashville and my interest in vintage country music.  In addition to the singer (Willie Nelson), he suggested that any of the other artists mentioned were worthy of a listen.

Quite honestly, the first thing I thought when I saw this video was - who's the guy in the suit?  That's Willie Nelson?!  Well, it was 1965...