[bondingo]

I don't really think anyone has actually answered pommy's question. Sure, Utada is Hikki's last name, just as Ayu's is Hamasaki and Namie's is Amuro, but I'm assuming that she's wondering why when written in romanjill, her name is usually written with the last name first, as opposed to the other J-Pop artists that are labeled with their first names before the surname. I don't really think anyone knows why foreign fans of these artists tend to name artists in different ways than just the typical last name first manner that is customary in Japan (i.e. why Hikki, Kuu, and Shiina Ringo tend to have their surnames first, while Ayu, Namie, and Ai usually have their first names before). I think people just started doing this and now plenty of fans go along with it.