I am talking about the likes of Madonna, Cher, Tony Bennett, Paul McCartney, Aretha, Barbra... I am talking about the living legends of our current queens. Who is the biggest legend and will be remembered the most? This is not about who is the biggest artist at the moment.
Being your receipts of their total:
Sales
+ albums sales WW
+ singles sales WW
Tour:
+ total tour gross
Acclaim (awards, ...)
Impact
Following/Fanbase
...