He was not alas at this:
Doc Severinsen & His Big Band Live at Doc’s 90th Part 1 [2017]
https://www.youtube.com/watch?v=AH2l1Hb_kS0
Doc Severinsen & His Big Band Live at Doc’s 90th Part 2
https://www.youtube.com/watch?v=McMjEQTcbYk
Doc Severinsen & His Big Band Live at Doc’s 90th Part 3
https://www.youtube.com/watch?v=9Hptguf_ORU
Pretty darn good sounding.
I just hope I can stand and walk that well when I’m 90.
Doc was the pops director for the Minnesota Orchestra for years.
Last time I saw him perform was around 2015, or so. His “Jingle Bell Doc” Christmas performances. Dude was like 90 and could still blow the roof off of Orchestra Hall. He couldn’t hold those notes very long. But he could still wail!