Ive been blessed to see the greatness....sooooo...in the whole asian pop world I'd have to say......SES or Utada. I know SES has broke up but I love their music and well, Utada is Utada, she's just amazing.

fra-foa
globe

Mm. Here's a list. Yeah.

Morning Musume or any Hello! Project group/soloist. :D
Ayumi, of course.
Miyavi.
Aya Ueto.
Ai Otsuka

I love to see some jrap
 

I would love to see HEARTSDALES, Lisa, Double, Namie Amuro, Ayumi Hamasaki and of Course my favorite Koda Kumi even though I already saw her at Ushicon in Texas Jan. she was really cool, and nice wouldn't mind meeting her once again.

AYU of coz!!!!! other than ayu.. i hope to see GLAY and Gackt!!! they rocks !! ^^ ... and perhaps w-inds and Hitomi too.. =P
but i think there are going to be many of them that i want to see *cant remember all of them now*

without a doubt, Namie. second choice would be Shiina Ringo.

I would like to see most Onitsuka Chihiro. Her lives are absolutely amazing. She seems to take the audience into her home and sit them down and talk with them. That's how at home she is on the stage. And her vocals are incredible.

Second, I'd like to see Ayu.

Third, I would like to see Every Little Thing.

I couldn't pick so I would want to see all of these singers or bands
Ayumi Hamasaki
Namie Amuro
Olivia Lufkin
Do As Infinity
Exile
Koda Kumi
Utada Hikaru
BoA
Glay
Chemistry
L'Arc ~en~ Ciel
Gackt
Shiina Ringo
Aya
Tomoko Tane
Anna Tsuchiya
Aikawa Nanase
Heartsdales
Fang Shou (I think that's what they're called but I'm not sure)
and I think that's it.

That's tough. I'd love to see Ayumi.
After that:
Fayray
Ayaka Hirahara
Nami Tamaki
FIR
Utada would be amazing too.

ayu or utada or ken hirai or misia

those power-house ^^

definitely Ayu and Hikki. :yes

Gackt. Ayu is actually my second choice. =^.^='

Ayumi Hamasaki & Do As Infinity

Miyavi, Gacktooo!

Ayumi Hamasaki for sure! and also Utada Hikaru, Olivia Lufkin, Namie Amuro, The Brilliant Green (if they would do something together...), Every Little Thing, Namie Amuro. Globe...

ah...if only!!! :D

Are you kidding me? XD Ayu, of course!

Hmmm I would love to see

YUKI!!!
Utada
The Brilliant Green (or Tommy Feb.6)
and AYU

I was lucky to have seen Puffy (2 times), Tamaki Nami and AI already. If I wouldn't have seen AI then she would be tied at number one with YUKI.

Without a doubt Shiina Ringo/Tokyo Jihen

I've seen dir en grey live before and they were fantastic...so I would like to see them again...
Aslo,
I would not mind seeing Miyavi, Gazette, Alice Nine, An Cafe and Ayu in concert!

I'd like to see any H!P group in concert and act like a crazy fangirl surrounded by crazy fanboys. I want to see an aiko or Ai Otsuka concert... I love the energy they put in their lives. They're very natural and make some interaction with people. And also, Ayu. Because of the beautiful costumes and backgrounds. Isn't it surprising? :rolleyes