I‘m a newcomer to videos that isolate the voices of singers, and I just heard one of Britney Spears that made me wince. A lot. But there was a link to this one from the Beatles and all I can say is … Wow! These guys were even better than I thought they were. And I thought they were the greatest.
If you haven’t heard this before (and even if you have) crank up the volume and enjoy the masters at work.
Update: It’s regrettable that a DMCA takedown notice filed against Google caused this video to disappear from every available source just hours after I found it. It had been widely available for about six weeks before the takedown.