Original, to the max, cover to follow, or precede, below, as it were.
Great song. 1973! It was true then, and it's true now: there's great, great stuff around, but you'd never know it to listen to the bullshit they play on the radio. (Or the modern equivalent of mass circulation, whatever it is, I don't care to know.)
It's always a good sign when the comments to the YouTube video are in multiple languages.