Don't know if these have been ever posted so I thought I would in case they haven't been seen yet...
The first is cute. I think it is more in line with the more modern artistic takes on the original.
http://www.nosmag.com/fiseain/hallelujah-colaiste-sheosaimh/ The second one is actually Gàidhlig, the clip isn't the best. The feeling of the song is a little too quick and chipper in my opinion, but she does a wonderful job. I like the flow of the words with the melody of the music...
http://www.youtube.com/user/donaldmurdo#play/all/uploads-all/1/-7CBANTbO7k