Would be nice listen Ayu sing in italian, for example a cover of 'Almeno tu nell'universo' (At least you in the universe) It's a beautiful and sad song, like Together When... or an original song.
But I'm happy if she used an italian word for an her song title, like Hitomi Shimatani she used 2 or more italain words for her titles.
I like the word 'Piuma' (feather) for an her sweet ballad like JEWEL.
Japanese likes italian words as spanish words, I guess.