What is this song? It's some sort of reggae song.?

I've been looking for hours but I haven't managed to find who wrote
this song(let alone what the song is). If anyone could help I'd be
very thankful. From what I can understand of the lyrics is this:

Way back in jamaica, man. I was working all the time. When I felt
the...(unsure of anything past this point).

Here's a video link:

http://www.youtube.com/watch?v=oLgjkGEAluY