It's a well worn trope that singers often sound worse, even terrible (if they don't have the self awareness to avoid doing it) when they get older.
However this doesn't always seem to be the case.
Who have you discovered fits into this category?
My submission - Robert Plant. I've never been that into Zep. I quite like a couple of tunes and that's as far as it goes. Probably my favourite of theirs is Kashmir, here he is performing it in 2007, 32 years after it was released, and possibly better than the original recording.
Singers that maintain a good voice with age
1Dave N. wrote:Most of us are here because we’re trying to keep some spark of an idea from going out.