As you might guess from my moniker, I totally agree. And if that teacher in the future needs one photo to illustrate to his students what rock music was, he couldn't go wrong with this.
What a great photo!
I was always a great Who fan, but Entwistle was one of my absolute favorite bass players. He always just stood there, often in the shadows, while the others did their marvelous gyrations.
His death was a great loss.
Greatest concert ever, The Who at the Isle of Wight 1970.