City goalkeeper Hart was speaking after yesterday's 3-0 thumping of Inter Milan in Dublin.
â€śWe are all looking forward to Sergio Aguero joining in," he told City's website.
"I havenâ€™t seen much of him but the little we have seen in training has been exciting. We know he is an exciting player and he is what we are all about. A young team full of good players moving forward.â€ť