And you’re treating Al as a has-been, but his latest album was number one in the US charts.
What exactly makes a “great artist” then? Surely that’s subjective, and popularity isn’t the only metric. We’re talking “great”, not simply “famous”.
But alright, take your pick:
https://www.buzzfeed.com/hannahdobro/nicest-celebs-people-ha...
https://www.quora.com/What-famous-rock-musicians-are-genuine...
https://www.reddit.com/r/popheads/comments/s4rrug/artists_th...
Plenty of names there who are “generally considered the very top of their profession”, and bigger than the ones you picked.
Of course, I guess this could easily veer off into a discussion about what qualifies as "great artist". Does a top-selling musician/singer who has limited range or uses autotune count, or does someone with amazing technical ability but little commercial success not count? Does a "wooden" actor qualify as a "greater artist" if they've grossed higher than Daniel Day Lewis?