"Song of Pig" (Chinese: 豬之歌) is a freely downloadable song by Xiang Xiang (香香), who quickly became a popular Internet pop star in China.
According to one of its hosted sites, it has been downloaded a billion times (see BBC article: "Chinese pop idol thrives online") throughout China, Singapore, and Malaysia.
The song's lyrics describe a pig.
It is the title track of Xiang Xiang's first solo album.