MeeYun, I have never heard this, I googled it as below: 北方有佳人 -------李延年 Title's Meaning is northern china has a pretty girl. 北方有佳人,绝世而独立。 一顾倾人城，再顾倾人国。 宁不知倾城与倾国？ 佳人难再得！ http://www.guoxue.com/art/ss000/hvsc001/bfyjr002.htm In my opinion this is a classical Chinese poem /song which is written by Han Wu Dynasty 汉武帝时期 Li Yan nian.

佳人曲 北方有佳人，绝世而独立。一顾倾人城，再顾倾人国。宁不知倾城与倾国？佳人难再得！

This is a very old Chinese song made famous in the west when it appeared in the film 'House of Flying Daggers'. It is generally known as 'Rare Beauty of The North'. or The Song of Beauty'. It's Chinese name is 《佳人曲》

《佳人曲》(< a song of pretty women >) 北方有佳人， 绝世而独立。 一顾倾人城， 再顾倾人国。 宁不知倾城与倾国？ 佳人难再得！