I can't say who is the biggest (based on sales?) but Grace Slick has to be among the most talented and respected ...
What about Patti Smith? She is also a legend and still rockin'
I thought the same thing Thumper, & thought I must've missed something but I've never heard her referred to as the Queen of Rock. If you type in the search 'Queen of Rock and Roll Tina Turner' of course your going to get results but the same thing happens when you type in 'Queen of Rock and Roll Joan Jett' or 'Queen of Rock and Roll Ann Wilson' or 'Queen of Rock and Roll Janis Joplin'