26-year-old Song arrived in England back in 2005 from Bastia, and whilst it took some time - including a loan spell at Charlton - to acclimatise to the Premier League, Song became a key part of Arsene Wenger's side, and his impressive displays in the 2011-12 season saw him earn a move away from the Emirates Stadium - to Barcelona.
Cameroon international Song became yet another player to leave Arsenal for the Catalan giants, following in the footsteps of Thierry Henry, Aliaksandr Hleb and Cesc Fabregas since the North London side moved to the Emirates Stadium, and actually matches the underwhelming careers of his predecessors at the Camp Nou.
Signed as insurance for regular holding midfielder Sergio Busquets, Song has been unable to put any real pressure on the Spanish international, whilst his sporadic displays in the first team - including spells at centre back - have been disastrous, leading to manager Gerardo Martino to consider selling the midfielder.
Reports suggest that Barcelona are willing to sell Song for around £12m this summer - £3m less than what Barca paid for him less than two years ago.
Former club Arsenal have been linked with a swoop to bring him back to North London, but their Premier League rivals Manchester United appear to be the front runners for Song's signature, with Red Devils boss David Moyes still seeking reinforcements in midfield.
Napoli, managed by former Liverpool boss Rafael Benitez, have also been linked with a move to take Song away from Spain, but it certainly seems that the former Gunners star will be leaving the club this summer - the only question is where to?