Would V for Vendetta qualify as a 'Rockerboy'?
In either the original comic by Alan Moore(great book), or the Watchowski movie(They tried), I know V isn't usually strumming a guitar, but he conducts an orchestra by way of explosives. And he 'hides' from authorities but makes himself extremely recognizable. And very marketable.
I'm sure the real answer most will give is "Oh he could technically qualify as any number of things", but if you had to choose between "Solo" and "Rocker", and you couldn't blend elements of both. Which would you choose?