Evan Johns (three albums on Rykodisc, a bunch of others on assorted labels) was legendary not only for his guitar playing (amazing), songwriting, and singing, but his drinking. When I went to Atlanta for a week in the late-90's to record an album with him, he said to me: "As long as you stay away from the hard stuff, you're okay."
He drank only beer, but a LOT of it. He arrived in Atlanta a day before the band members, and passing by his hotel room door the morning after we arrived, I saw two 18-packs of empty Budweiser cans discarded on the hallway floor. In the studio he chain drank them, opening a new one as he was finishing the last. He ate one meal the entire week.
The album was done, and a supporting U.S. tour was being setup. Then one day back at home (British Columbia at the time) he wasn't feeling well, and went to the hospital. He fell into a coma, the doctor telling his woman he was in the final stage of liver failure, and to make funeral arrangements. He proved the doc wrong, simply sitting up in bed one day a few weeks later!
Turns out this was the third time the exact same thing had transpired. But in Austin in 2017, the end finally came. He was only 60 years old, and quite a character. But how about Jerry Lee Lewis? The hardest drinker of all the Sun Records guys (Elvis, Carl Perkins, Johnny Cash, Roy Orbison), and the last man standing, his 85th birthday later this year. I can't believe he is still alive!