Karel Gott.
He's a Czech singer.
Famous in the Czech Republic, but stratospheric in Germany. Or so I've been told.
Telling me that someone is stratospheric in Germany gives me a slight pause about how talented he or she is. After all, Germany is a country where people are nuts about David Hasselhoff. Basically I question the German take on artistic merit.
In almost any conversation I've had about Czech entertainment, or celebrities known internationally (very few), Gott's name has always come up.
I imagined that he was somewhat of a Czech Frank Sinatra. If that's an overstatement on my part, try Tom Jones or any aging entertainer on the Vegas/casino circuit.