Some of the PNW group were talking about music this afternoon, and it was clear that it would be easy to list some of the greatest females vocalist [I'll leave that for someone else to start that thread

However, we ran out of names at about a half dozen
great male vocalists. We're not talking entertainers or musicians -- vocalists. Yeah, MJ was a great entertainer ... but not a great vocalist. One name per post. I'm going with low-hanging fruit:
(1) Frank Sinatra