Welcome to Ya Tou and Wang Zi crunchyroll group!!
I guess this couple became famous after their Channel [V] drama, The Legend Of Brown Sugar Chivalries, where they were a couple in the first episodes... unfortunately they broke up and Wang zi ended with Xiao Xun and Ya Tou with Ah Wei.
This group doesn't really have rules, but we don't want anyone insulting other Wangzi-couple (GuiWang/WangXun ect.)

there's no need to introduce them, right?? x]
Ok, Ya Tou is from Hei Girl, Wang Zi is from Lollipop... does it ring a bell??
They are both under Channel [V], on the idols shows Wo Ai Hei Se Hui and Mou Fan Bang Bang Tang.
They are both number 1, at woo.com.tw