Thierry Henry has joined Arsenal on a two-month loan from New York Red Bulls.
The former Arsenal captain, 34, has been training with the club during the Major League Soccer off-season.
The forward will play for the club during January and February, with striker Gervinho absent at the Africa Cup of Nations.
Henry, who is eligible to play in Monday's FA Cup match at home to Leeds, said: "When it comes to Arsenal my heart will always do the talking."
The striker was famous for wearing the number 14 shirt, which Theo Walcott currently uses. Henry will now be Arsenal's number 12.
Manager Arsene Wenger added: "I am very happy. It was my desire and Thierry's desire.
"We will have Thierry for January and February, then he will go back to the United States.
"I am sure during these two months he will be a massive asset to the team in the dressing room and on the pitch.
"He can be relaxed, not under too much pressure and be a tremendous help to the team."