月西江 (Yuè Xī Jiāng)

Controversies
Japan and China are known to have tension between them (for political and historical reasons), and the original video was attacked with anti-Chinese comments by Japanese NicoNico users. This prompted SolPie to take it down, causing outrage from the Vocaloid fandom. The song has since been reuploaded in various forms, but not the original.