Well, it turns out that it was indeed copyright infrigement and that Celtic Woman Ltd. did in fact order him to remove it. He left a comment somewhere saying that some "ungrateful b*stard" reported him to Celtic Woman Ltd. Now that really annoys me; if Celtic Woman headquarters tell him themselves that he must remove it because he is doing something illegal (which I'm sure he was at least somewhat aware of) concering their work, he has no right to get angry, or call whoever reported him ungrateful. Sorry, I'm ranting. Either way, I'm glad it was taken care of.
This person knows it was illegal and whining about it about "bootlegging", Golly!!