https://en.wikipedia.org/wiki/List_o...tists_in_Japan
This link always cheers me up when Ayu's not doing well in the charts. Can't believe she's 15 million copies ahead of the next biggiest female artist. She's way ahead of the game and I feel like no other female artist can beat her EVER. (Interesting to see that AKB is slowing catching up. They are around 6 million behind her. That' sonly 6 more singles!)