FC 서울 is a professional football club based in Seoul, South Korea. Founded in 1983, the team competes in the K League 1, the top tier of South Korean football. The club has a rich history, having won multiple league titles and domestic cups, making it one of the most successful teams in the country. The team's home matches are played at the Seoul World Cup Stadium, which has a capacity of over 66,000 spectators. FC 서울 is known for its passionate fan base and vibrant matchday atmosphere. The club's colors are red and black, symbolizing its fierce competitive spirit.