McGrath:   An earlier Ewan MacColl? According to Peggy Seeger's preface to Journeyman, this was so.

A good wheeze at the Singers Club used to be to see how many times you could get away with singing a song from somewhere other than where you actually came from. Woe betide you though if Ewan recognised you from a previous week.

But as far as I know, no-one ever challenged him when he did an American song, or one from the music halls...