She has stopped big bands too! Ayu kept Mr Children from having a #1 album with Duty...and I think she stopped Kinki Kids #1 Album streak with Rainbow.

Ayu powerrrr :luv2

Ayumi Hamasaki - GUILTY
I can't believe her best album since MY STORY stalled at #2! This makes me wonder if there is in fact a huge disparity between what Ayu's overseas and Japanese fans like.

Suzuki Ami - DOLCE
This was, with the exception of a few tracks toward the end, unbelievably solid. She should be right up there with Ayu, Utada, Namie and Koda, but she's sadly not.

Namie Amuro - The Queen of Hip-Pop
Speaking of Namie, she should have returned to prominence with this album instead of waiting for PLAY to put her back in the spotlight. I still like PLAY better, but this was great too. On another note, I also think it's a travesty that Put 'Em Up flopped. If she was an American artist, she would have had a smash hit with that.

Otsuka Ai - Kingyo Hanabi (Single)
How could this NOT have topped the charts?!

MISIA - Eighth World
It wasn't perfect, but it sure is better than some things that have gone to #1.

sifow - & YOU REVOLUTION
sifow - CLOVER
sifow - LOVE & PEACE
sifow - CLARITY
sifow - Carat
sifow - RULE
sifow - NATSU HANABI
sifow - LOVE SPELL

EMYLI - Rain
EMYLI - Flower of Life

Emi Hinouchi - GOODIE MEMORIES
Emi Hinouchi - AI DAKE GA

LISA - LISABEST

SOULHEAD - BEST OF

Yuna Ito - losin'

LOL she did??? :laugh

Albums

ayu - GUILTY
ayu - A BEST 2 -BLACK- (as well)
kumi - grow into one
kumi - affection
Namie - Style

Singles

ayu - Fly high
ayu - Daybreak
ayu - vogue
kumi - m.a.z.e
hikki - Passion

I want to add somemore :

Singles :

otsuka ai - Kingyo Hanabi , Renai Shashin , Freigner , Yumekui

Yuna Ito - ENDLESS STORY , Precious , Truth

Mika Nakashima - Hitorio , CRY NO MORE , ALL HANDS TOGETHER , Eien no Uta

Albums :

Yuna Ito - WISH

Mika Nakashima - YES , THE END

Aiko's Himitsu D= ~! (Biggest let down of this year T^T)
Aiko's Futari
Aiko's Hoshi no Nai Sekai/ Yokogao
Aiko's Shiawase
Ai Otsuka's LOVE PUNCH
Ai Otsuka's Sakuranbo
Ai Otsuka's Frienger
Ai Otsuka's Ren'ai Shashin
Ai Otsuka's CHU-LIP
Ayumi Hamasaki's vogue
Ayumi Hamasaki's Audience
Utada Hikaru's Passion
Utada Hikaru's keep Tryin'
Ami Suzuki's Free Free/Super Music Maker
Namie Amuro's Queen of Hiphop
Namie Amuro's Want Me Want Me
Namie Amuro's Can't Eat Can't Sleep, I'm Sick
Mika Nakashima's Legend

Amuro Namie - Baby Don't Cry
Amuro Namie - White Light (/Violet Sauce? I never did know if this was double A-side or what)
Otsuka Ai - LOVE PUNCH (Ai's best album ever :D)
Hamasaki Ayumi - GUILTY (Of course :rolleyes)
BoA - LOSE YOUR MIND
GOLF & MIKE - nippon ai ni iku yo (Because I swear I've never talked to a girl who knows that song and doesn't love it? <<)

Tons of w-inds. releases, tons of AAA releases, so on and so forth. :yes

I wish CORE OF SOUL sold better. It's too bad they disbanded - I loved their music!

I can't think of any singles off the top of my head, but I definitely know that GUILTY should have hit #1.

Ayu's 'GUILTY' album rofl....
JUNGLE DANCE - Nana Tanimura
Ashita e no Sanka - Alan
Hitotsu - Alan
Yukiboshi - Satomi Takasugi
Issho ni - Satomi Takasugi
Koiiro - AZU

...and I can't think of anything else lol...and yes, these are biased :D.

then Kobukuro stop ayu :dead2
ughhhh...

Not in my opinion. That's the only reason I didn't list GUILTY. It still got #1 weekly sales, just not for oricon. That's good enough for me.

Albums:

Ayumi - A Best 2 Black (it should have been released a week before/after White)
Ayumi - Guilty
Namie - Queen of Hip-Pop

Singles:

Ayumi - Daybreak
Ayumi - Far Away
Ayumi - Vogue
BoA - Valenti
Kumi - 4 Hot Wave
Kumi - Moon
Kumi - So into You
Utada - Automatic
Utada - First Love

Beautiful World/Kiss & Cry... that single was #3 its first week and #2 the second week... and it was in the top 20 yearly, but it never hit #1!

Koda Kumi - MOON
for surrreee

I forgot that Hikki one and Beautiful World it's great! 2007 was like a great year for Utada, with the monster success of Flavor of Life.

Anna Tsuchiya Feat AI - Crazy World

Japan's crazy not to make this single no.1 , it's ace !

モーニング娘。- みかん
モーニング娘。- リゾナント ブルー
Berryz工房 - ジンギスカン
ºC-ute - 涙の色
High-King - C\C (シンデレラ\コンプレックス)
Anna Tsuchiya - cocoon
BoA - LOVE LETTER
Wakeshima Kanon - still doll
aiko - Futari
Shiina Ringo - Kono Yo no Kagiri

Singles :

WANT ME WANT ME - Namie Amuro
Baby Don't Cry - Namie Amuro
BUT/Aishou - Kumi Koda
MOON - Kumi Koda

Albums :

Queen of Hip-Pop - Namie Amuro
LOVE ENHANCED♥ single collection - Namie Amuro

everything Tenjo Chiki released.

Ayu - GUILTY
Shion - Candy Girl
Bonnie Pink - Thinking Out Loud
Chara - honey
moumoon - Flowers
moumoon - love me?
moumoon - Do you remember?
moumoon - Tiny Star
Genki Rockets - Heavenly Star/Breeze
Genki Rockets - Star Line/Smile
Aira Mitsuki - Colorful Tokyo Sounds NO. 9
Aira Mitsuki - China Discotica
Mika Nakashima - YES
Kimura Kaela - +1
Ami Suzuki - Free Free
Ami Suzuki - Dolce