Arguably one of the most accomplished midfielders in the Singapore Premier League, he is known for his pace, dribbling, high work rate and superb technical abilities.
[5] Having excelled at youth level for his academy, by the recommendation of his coach from Yeouido High School, Song left South Korea at the age of 17 to pursue footballing opportunities in Singapore.
He came on as a substitute in the 56th minute, and played the remainder of the match which eventually ended 1–1 (3–4 on penalties) in a win for the Singapore Selection team.
Alongside Shahril Ishak, he enjoyed a prolific start to the 2018 Singapore Premier League campaign before encountering an injury that ruled him out for the latter half of the season.
Despite being offered a deal worth US$20,000 per month from the Indonesian club, Song chose to remain with Home United, stating his hopes of representing Singapore internationally in the future.
[9] On 14 February 2020, Home United was purchased, privatised and officially renamed as Lion City Sailors by Singaporean billionaire, Forrest Li.
During the 2021 season, Song was quick to express his delight at the influx of fresh talent, which he explained helped boost the quality and intensity of training sessions.
[citation needed] In the reverse fixture against Daegu, Song scored a goal again but the Sailors eventually lost the match.
[citation needed] On 15 January 2023, it was announced that Song had left Lion City Sailors to move out of his “comfort zone” to pursue new challenges with Thai League 1 side Nongbua Pitchaya.
On 5 December, Song scored a hat-trick where he also assisted Lennart Thy goal during the club's 5–2 victory against Thailand club Port helping Lion City Sailors to finish as Group F winners and advancing to the round of 16 in the AFC Champions League Two where scored 5 goals in six appearances in the AFC Champions League Two group stage.
[17] Song scored the lead against Kyrgyzstan in the first game of the 2023 AFC Asian Cup third-round qualifiers before turning from hero to zero conceding the next two goals in three minutes sent Singapore to a narrow defeat.
Despite putting a brilliant intense performances for Lion City Sailors throughout the 2024–25 season, Song missed out on the 2024 ASEAN Championship citing personal issues that his mother is unwell and will returned to his native country in South Korea to look after his family.
[20] Song was inspired to play football professionally at the age of nine after watching the 2002 FIFA World Cup, when the South Korea national team battled their way to fourth place on homeground in which he has stated at he grown up idolise former Manchester United legend, Park Ji-sung.
[4] Song had also been applying to be a Singaporean citizen on his own merit, independent of the possibility of the Football Association of Singapore reviving the Foreign Sports Talent Scheme which was established in the 2000s.