"Pingju" is a song sung by Li Yijun and Li Fuxing. It was written by Lu Lala and composed by Sun Zhengming. It was included in his "Pingju" album released in 1987.

In the summer of 1967, when Sun Zhengming, the composer of "Pingju" was studying in the Music Department of the National Normal University, he happened to meet two girls from the Practitioner College and the Tainan Family College at a music teacher training event in Taichung. Knowing that he was majoring in music, they brought a short piece of lyrics on a piece of paper during get out of class time and asked him to help compose the music. They said they planned to use it to participate in the song selection of the National Salvation Corps. . At first glance, Sun Zhengming thought that the lyrics looked like they were scribbled by you and me, so he added the intro and chorus outro to complete the song.