If you need to say the world's most popular artist in place of a name in a title then you probably are not that famous.
Isn't Banksy the most well known artist these days?
Isn't Banksy the most well known artist these days?
That's so 2010s. semi-/s
Elvis and the Beatles used to be some of the most well-known musical artists, yet how many people born more recently would be familiar with them.
"Every generation throws a hero up the pop charts." — Paul Simon, "The Boy in the Bubble"
yes, banksy is the most easily recognized, commercially successful modern art commodity object producer.