Your replies make a lot of sense. I hadn't considered anime (knowing next-to-nothing about it) or the rock band. I agree with the theory that once it is legitimised by being a book or film character's name it becomes more popular generally. Thanks again.
"Tea is still believed, by English people of all classes, to have miraculous properties. Whatever your mental or physical state, what you need is 'a nice cup of tea'." Kate Fox, Watching The English.