Now watch as 9 year-old Lucy Beth receives the brilliant news from Sergio who also models the colourful new shirt - one of only 20 PUMA have created.
Aguero said: "We'd like to thank everyone who entered.
"The designs were amazing and the winner is..."
At this point, with a live link up, Lucy Beth watches with her family as Sergio unzips her winning design - just imagine the excitement for any youngster!
"Nice," says Sergio - "very nice! I will sign it and post it to you, Lucy."
Watched by her family, Lucy Beth then opens the package that has been sent and she sees her creation for the first time.
For a family of City fans, she was understandably over the blue moon.
Now watch the video above for a once in a lifetime moment for a very happy young lady...