The 32-year-old has signed a deal with the Eagles having been a free agent since leaving the Emirates at the end of last season.
Crystal Palace has confirmed the signing of former Arsenal midfielder Mathieu Flamini on a free transfer.
The 32-year-old has been a free agent since being released from the Emirates club in the summer, having made 24 appearances for the Gunners last season.
Upon signing for Palace, Flamini said: "Crystal Palace is a very ambitious club with great players and I am looking forward to being part of that squad. It is a very interesting challenge for me and I am very excited to be here.