If I remember correctly, wasn't Ayu the first asian artist to have taken over the world charts' #1 and #2 spots with A BEST -WHITE/BLACK-?
That's a huge thing since we are talking about the global charts. :3
And then there's that record she broke with L, something about a female artist with most #1 hits or something that was Seiko Matsuda's record before, am I correct? :3