Finally, "Iris" by the Goo Goo Dolls still a rock ballads ever and should remain better intact. mainly because of the Goo Goo Dolls singer also has a lot on it and "Iris" is not so easy to sing.
Since the discrepancy is all the more when one mostly leaves even the Arrangement, makes just a little bit "poppy". Then you have quite namely prove force, so that one is not too weak. And that's what happened here Ronan Keating unfortunately. He had better changed the song and made a peaceful acoustic version of his own, but it is somehow a weak imitation.
The package is too pop and shallow and his voice to "harmless" to seriously take on the original. he would be participants in a talent show and would present this song, you might let it pass him than acceptable performance. But since he is already an established pop star, he would have really 2 times to think.