On Gordon Lightfoot's facebook page, there is an old interview from thirty years ago where Joan London asks Gordon (I'm paraphrasing here) if the label "folk singer" still fits him. Lightfoot replied he considered himself in the "adult contemporary" category and that "folk" didn't describe him anymore.
I certainly agree with Mr. Shane that the Trio were "entertainers". But that first (Or was it second?)Grammy award kinda put a label on the group that most everyone goes by. That label certainly didn't hurt them at all. MTABob