Reports claim that the Catalans have lodged a GBP 11.7 million bid for the player, while Russian club Zenit St Petersburg have also been linked with the Cameroon international.
Song still has two years left on his contract with Arsenal, but it has also been suggested that the midfielder is keen to extend his stay at the Emirates.
Song admits that he has heard the rumours, but insists that he is happy with the English Premier League side.
“I am not going to lie if I said there is no interest but I am at Arsenal and I am happy at Arsenal,” he told Sky Sports.
“Barcelona are the best team in the world, and speculation will always continue until the window closes.”