That's the 1968 "comeback" special he did.
I was a kid when it aired and still remember all the women going crazy watching it on t.v.
This was his move to reclaim his place as "The King Of Rock-N-Roll" and it's probably his greatest performance ever.
I had forgotten how damn good he really was. I watched that show in it's entirety again a couple of years ago and yes...he really was that damn good.
Unfortunately, this was not only Elvis at the height of his powers...but he never again had his shit together like he did on this one night.
The next few years started his descent into prescription drug hell and eventual death as a fat bloated caricature of himself only 9 short years later.
