It wouldn't be stealing then. The other person would have to erase all of the credit and add the winx club one in the beginning and that would be hard. I don't think the person stole. Maybe he/she got it somewhere else.
Actually, Dee's vid was uploaded first. And you can tell because the audio is choppy. I even commented so on Dee's vid.
Oh well, then.
Well, Rai Due made the video so anyone can post it. Unless Dee made the video, it wouldn't be stealing. Other people have the right to post the same video even though the audio is bad. By the way, where is Dee's video for that? I've been searching for a while. ^_^