I'll add someone who might not be appropriate for Rock of the 60's, or rock of any year...........but one of the great female voices of the last 30 years was Karen Carpenter. I have no doubts that she would have been a superstar moving more to standards/jazz, with roots in pop....her brother is an excellent arranger, a little bloated view of his own performing/singing abilities....but this was a woman plagued by anorexia, and to this day, many of her vocals stand out as favorites of mine......her phrasing, the voice itself, the way she pronounced certain words, the modulation of her voice.
Again, this is not a popularity contest, just a sharing of the losses of special people......Brian Jones' death did not impact upon me so much simply because I was not a big fan of the Stones...as years flew by, the first 20 plus years of the Stones are historic, but their latter stuff, and at that time, their early stuff, didn't press my musical sensibilities like other groups......that's why I have fun with this topic................and I'm a sucker for videos that are popping up on Youtube and elsewhere where we get to see some of these special folks who have left this earth.
B.