Some Korean Kongs... like, FTTS's The Promise, and some from Tei as he has the bass tune in him that goes along well with his songs.
For chinese, I can only sing one song well. That is a duet called: Bei Ji Xue.
Recently, there's another version by Steve Chou entitled Zai Jian Bei Ji Xue. I like both and I sing them pretty well too, just that my voice ain't as high as Steve's.
I was in the New Zealand Idol.. 2nd place..since they r biased against asians...