Yes. He would often cover "Something" and "Get Back" in his 70s concerts.
I'm a huge fan of Elvis from 1969 to 1974. "From Elvis in Memphis" (1969) is my favorite Elvis album. Some, but not all, of his live stuff in the 70s could be mesmerizing. When he was "on," nobody could touch him. Too often, we focus on the exhausted Elvis or the bloated Elvis from the last few months of his life and miss the bigger picture of a great performer w/ a great band (James Burton on guitar).
If you are looking for Elvis, original US RCA LPs sound swell. On CD, look for those mastered by Vin Anesini. The FTD label releases some amazing Elvis product.
BTW, I was only a casual fan, digging the early stuff but not appreciating his later legacy until I visited Graceland. I literally had a graveside conversion.