Gunners midfielder happy for his in-form former team-mate but insists it will be all business when the two north London clubs meet at White Hart Lane on Sunday
The Cameroonian is close to the Togolese international and thinks the fixture will provide the perfect showcase for the Spurs striker to prove he is not a big-game choker.
Song insists, however, that it'll be all business come kick off, with any thoughts of friendship out the window for 90 minutes.
"We know Adebayor is a very good player and I am very happy for him now," the 24-year-old told Arsenal Player.
"Everyone put him down when he went to Manchester City, but I am happy for him.
"I know in the big games he will want to show he is not 'dead'.
"But I just want us to go there, try to play and win.
"He may be my friend but on the pitch it is different - I just have to do my job."
The Arsenal midfielder also showed support for under-fire boss Arsene Wenger, and insists the players trust the Frenchman.
"I think we have a good opportunity to show we can do something in the league this year," Song said.
"That is why we are motivated to go there and get something positive.
"We all have trust in the manager and we now need to go and show the people that they are wrong.
"The last two games we have done something good."
Tottenham are currently sixth on nine points while Arsenal are six places behind but will leapfrog their local rivals with a victory.