 During an interview conducted in 2016, Song stated that he was open to the idea of representing Singapore internationally.Song is a S Pass holder and met the residency requirements of 5 years set by FIFA by the end of 2016 for him to become a naturalised Singaporean.In 2018, the Football Association of Singapore formally expressed support for Song's application, announcing that discussions were in place to naturalise Song under the Foreign Talent Scheme to strengthen the national team.