He can chirp along with Toxic by Britney Spears... we are working on Jay's Rap from Jay and Silent Bob Strike Back. So far all he can say is "pretty bird". He is only 9 months old, but I work with him continually, and leave the tv on or mp3's on the computer when I'm gone. He chatters a LOT.
We determined sex by talking to a bird expert about "his" extremely territorial behavior. No one can touch his cage but me without being attacked, and he is very jelous of me. The bird is affectionate with me, but flips out if someone touches me in front of the bird. It attacked Anna when we first started dating several times, when she3 hugged or kissed me with the bird out of the cage, and is still somewhat aggressive with her. An avian expert told me that is characteristic of a female green cheek.