Ayu is the 4th Artist to have most weeks at #1 single chart
 

Full List :
Rank/weeks @#1/total #1 single/Artist
*1　63週/*9作　ピンク・レディー
*2　60週/43作　B'z
*3　50週/25作　松田聖子
*4　49週/35作　浜崎あゆみ
*5　44週/29作　Mr.Children
*6　40週/29作　KinKi Kids
*6　40週/21作　中森明菜
*6　40週/16作　近藤真彦
*9　31週/23作　GLAY
*9　31週/21作　SMAP
11　27週/27作　嵐
11　27週/14作　サザンオールスターズ
13　25週/10作　光GENJI
14　23週/23作　V6
14　23週/*8作　CHAGE＆ASKA
14　23週/*5作　天地真理
14　23週/*4作　小柳ルミ子
18　22週/20作　L'Arc～en～Ciel
18　22週/12作　宇多田ヒカル
18　22週/11作　工藤静香
21　21週/12作　田原俊彦
21　21週/11作　小泉今日子
23　20週/11作　福山雅治
23　20週/*8作　長渕剛
23　20週/*3作　さだまさし
26　18週/*9作　チェッカーズ
26　18週/*2作　藤圭子

Source : Livedoor

Hope she enters in top 3 too...

soon she will break Seiko's place. haha

yaay for ayu..!!
who's #1?

^ Pink Lady

I guess (and hope) that every single she releases from now on, will account for at least 1 more week :) so yeah, she'll probably break Matsuda's. Not sure about the rest since B'z are still releasing, and I don't even know who or what Pink Lady is.

Nice to see Hikki there too. <3

Pink Lady is first? who is that?? lol

thanks for the info!! awesome :D

I dont know either. they only have 9 #1 singles but can gather 63 weeks #1.
FYI Ayu is #2 for having most #1 single behind B'z

wow thanks for sharing!!
congrats Ayu!!!

cool!!!

wow.. Pink Lady is like soooo lllloooooong ago...

and B'z and Ayu really have lots of singles compared to the others...

That's really cool! I hope she can keep climbing.

so 2 more singles and she beats Seiko Matsuuda. so that's the next record to beat, right? :) could be in 2011!

the chance for ayu getting number one position is still possible, it will take a long way...but it's possible...if she release 3 singles per year, i think she can get number one position after 5 years...

One of the most famous Japanese groups of all time. :) They were huge in the 70s and to this day everyone in Japan still sings their big hits. They actually even had a top 40 billboard hit in America as well as a TV variety show on NBC.

Wooo~~~!! \(^O^)/ B'z! <33 *ahem* I mean I love ayu too! :innocent

I smell a new record to break...next year :P

they had a top 40 in america? what song??? i'd love to hear that!

wow congrats Ayu & everyone on the list!

Congrats Ayu! Hope she will get to the top ^^