Removed due to copyright reasons. The song "Obsession" was written and composed by musician Xu Liang and sung by Xu Liang and A Qiao. It was released on December 4, 2010. It was listed on Kuwo Player, but due to copyright reasons, the song was removed from the shelves and could not be found. As the title song, the song is included in Xu Liang's solo album "Fuck", which was independently released on December 24, 2010.