Alexandre Dimitri Song Billong (born 9 September 1987), better known as Alex Song, is a Cameroonian professional footballer who plays for FC 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 eleven during the preseason to the 2008–09 campaign, resulting in a €15 million transfer to FC Barcelona in 2012.
He played for Cameroon 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