I specifically said I could not spot a Scouse accent with the Beatles but it was obviously northern English. Whether you believe me or not is irrelevant.

There are two examples that spring to mind of people obviously singing in their own accents. The Proclaimers and Kate Rusby. With most of the rest it is not so obvious but if you listen to how words are pronounced or inflected you can often discern an accent. Mostly I cannot tell what it is but when it is one I recognise, such as the North of England, it becomes even more apparent.