"Rej", I introduced the term "superstars" as a convenient shorthand for performers who were famous enough to attract a bigger audience, the point being that they are in a minority. I've no idea how well known they are to "non-folkies", but they're probably known to many who wouldn't regularly go to a folk club (which is not quite the same thing), and if they've been on TV then they'll be more widely known.

As for aspiring young performers... what Moorley Man said!

Anahata