The AV Club has a great primer on the music of Elvis Presley, presumably in honor of the anniversary of his death this week.
You may wonder why arguably the most famous pop/rock star in history needs an introduction, but the article hits the nail on the head, I think:
While Presley’s fame continues unabated, his musical legacy is a different story. Presley’s many hits still get played on the radio every single day, but actually hearing those songs for what they are requires unpacking a lot of baggage and addressing many of the same prejudices that haunted Elvis’ career back when he was alive.
It goes on to identify the recordings from the different phases of Elvis’s career that merit revisiting. I wholeheartedly endorse this top 5 list of essential Elivs:
4. Elvis 56