Ayu is the 4th best-seller

[andre2907]

Plus: B'z had 28 albums and 43 singles; Mr Children had 30 singles and 16 albums; Southern All Stars had 52 singles and I'm not sure how many albums (i guess around 32?); Ayu had 29 albums (incluinding her remix albums) and 40 singles and Dream Come True had 39 singles and 21 albums.

So, even if she was the last one to debut, she has as many releases as the others on the lists (of course, lots of them were remix albums).