I have no idea whi this Jedward is, but can I just say that from what I have heard the fans were outraged at some of the casting choices for LotR. I wasn't around at the time, but I know I'd be upset if I knew the the ditzy Liv Tyler was Arwen, that the very American Sean Astin was Sam and the rather odd and occasionally ditzy Elijah Wood was Frodo. As it was I had no idea who these people were when I watched the movies and I love the cast. I'm glad I wasn't prejudiced. So I guess we just have to trust the people who do the casting, they seem to know what they're doing.
Edit: I hope I don't offend people with what I said here. I love all the cast but one must admit that Liv does seem a bit ditzy when not in character, I have nothing against Americans but I wouldn't have thought Sean up to the job of coming so completely into the role and Lij is a bit of a nutter, but I mean it in the nicest and fondest way