Wow, so much confusion. Off and on topic as usual.
I stated that I saw 2NE1 using Studios in one of their MV's. And I described 2NE1 as one of Korea's many Kpop groups (well second ranking after SNSD, yes the girls on Letterman), using an example of the one in the video (most recent buzz on U.S. soil) But, I never seen Girls Generation (So Nyuh Shi Dae - S.N.S.D) use them. Sorry Lizard King, you're a bit confused here.
Not that I'm a raving fan (although they are my favorite Kpop girl group), I'm a bit mystified by the 80% not being real vocals remark?
Granted, SM (the company and label owner) and SNSD utilize heavy does of commercial BS, pizzaz, tricks, props, marketing and other known forms, the girls' voices are quite genuine, and it's fairly evident in that clip since it was a live remix version to boot (sang in English as opposed to its native origin, Korean). If anything, they're one of few bands out there that sound actually better live than recorded. Notwithstanding for Kpop being what it is on a natural from (very commercial and mass produced appeal), they're not really denying any of it. With particularly to groups like SNSD, Kara, F(x), Secret and T-ara (which have some extremely cheesy sounding and looking tracks and MVs), those groups and their corporations backing them (or producing them) are aware of it, and are proud of it, which is a good thing. It's the nature of the industry.
As described, that Gee song (their signature track), while being overly cutesy, colorful, boper-like and extremely cheesy, it still managed to be the #1 chart topped song for 9 straight weeks upon its release.
Taste-wise aside here, it does take talent to make this happen.
Please note: This is how good commercial cheese supposed to look and sound like ..
-Special note, powerhouse singer, girl on far left (orange coat, with a ponytail - been argued to have one of the strongest voices in the business in Korea).