I've been meaning to post this for my new buddy Kwilla, but I keep forgetting.
It's Sinead O'Connor, live in Dublin, singing
Óró Sé do Bheatha 'Bhaile
One commenter quipped "Oh, look! Celtic Reggae!"
O'Connor is purported to have said this about her version of the song (from a commenter):
"Explaination from Sinead's album Sean-Nos Nua..."for me this song celebrates the return of any woman to her power , having lost it to invading forces.. It is an honouring of the female warrior spirit and of the right of any woman to be true to themselves. it is a war song in honour of Grace O'Malley -aka Grainne Mhaol, a warrior woman of Ireland who defended the Irish coastline during the time of Elizabeth 1 and had a formidable force of ships..."