It is said that among the concubines favored by Emperor Wu, the most memorable one is Li Furen, who is beautiful and good at dancing. Li Furen's luck depends on her brother Li Yannian's beautiful song, which is famous for moving the capital. A short song, incredibly can let the talented Liang Wudi smell the move, and suddenly gives birth to the yearning for Iraqis. This is probably the only case in the history of China's ancient poetry.