As someone already said, the china market is much bigger than singapore.
I got one singapore fren who like "super girls" very much, he said the singing skill of the girls are much better than those "superstar" or whatever in singapore.
"huo chai tian tan" by Shang wen jie(remember xiong tian ping?)
http://www.youtube.com/watch?v=PURtbKgolLs"hua Huo" by Shang wen jie.
http://www.youtube.com/watch?v=A_E03WZLaLc"Si le dou yao ai" by Tan Wei Wei(Orinigal singer was Shin, the taiwan rock band, it's a very difficult song, but she handles it well.)
http://www.youtube.com/watch?v=I9dbme1MOi4"wonderful tonight" by liu li yang
http://www.youtube.com/watch?v=HFo9EW5CYwA"dai ti" by Han Zhen Zhen(she wrote the song herself)
http://www.youtube.com/watch?v=Lp5rX_vsLjIThere are alot, if interested, here's the search link:
http://www.youtube.com/results?search_query=%E8%B6%85%E5%A5%B3