Trey Parker and Matt Stone. Too crude in both animation skills and humor taste for much earlier. I say that as something of a South Park fan.
Kid Rock, big time.
Picasso
Might David Bowie fit into the “being around at the right time” thing?
IMHO, artists fall into two categories: Those whose names you recognize and whose works you know and those who didn’t have access to the publicity machinery [agents, reps, galleries, record labels or lineage] required to bring notoriety.
Steve Jobs (and to a lesser extent, Steve Wozniak, but Jobs was always the creative one of the pair. Woz would have been brilliant but languished in obscurity giving away his inventions).
Andy Warhol for sure. I agree with Elvis.
Even Mozart could qualify, IMHO.
And, according tohimself, Paul Simon. 