Who was the very first reggae artist?

This is a very hard question and i don't think we will get a definitive answer. The first tune to use the term reggae was 'The Maytals' with 'Do the Reggay' in 1968.

Among the contenders for the first reggae tune are:

Larry & Alvin - Nanny Goat

The Beltones - No More Heartaches

Lynford Anderson - Pop A Top

Lee Perry - People Funny Boy

As I say this is very debatable but those four seem the main contenders.