Help me identify a song I'm desperate

It's an Irish ballad or anthem perhaps. It's is sung with great passion for about 1:10 seconds in this youtube video. It begins at the 1:00 mark. I must have this song. The singer's name would be a huge bonus! I know I'm asking a lot on this one.

http://www.youtube.com/watch?v=vu0GBHw5NTs&feature=related

Thanks everyone!