This was during Oh Yeah performance of GD&TOP with 2NE1 at the 2010 MBC Gayo Daejun.
The eagle-eyed Chinese Addicteds noticed that GD kept looking to the far left side of the stage,
And they found out why...
Bom was there!

As soon as he did "the sign" he turned to look to his left as if he's trying to say
"Bom, I did it!" LOL

And Bom did the sign as well, you'll notice she like emphasized it to her right where GD is.
They are like the couple in We Got Married where they are doing mission when
they have stage performances ^____^

Cool, right? :D
Did you guys notice that too before?
Me, never. That's why I was surprised when I saw this in baidu.
Chinese Addicteds are jjang!

Credits: 欧冉智@baidu