Alexandre Dimitri Song Billong (born 9 September 1987), better known as Alex Song, is a Cameroonian professional footballer who plays for Rubin Kazan. He plays as a central or defensive midfielder, and can also play as a central defender.
Originally a utility player on the fringes of the first team, Song quickly became an integral part of Arsenal's starting 11 during the 2008–09 pre-season, eventually leading to a €15 million transfer to Barcelona in 2012.
Song played for the Cameroon national football team in the 2010 and 2014 FIFA World Cups. He was called up for the 2010 Africa Cup of Nations and was the only Cameroonian named in the Team of the Tournament. Song also possesses a French passport. He is the nephew of former footballer Rigobert Song.