ALL football songs are nicked from somewhere. You think the Balotelli song is original? You think "the only football team to come from Manchester" is original? Oh - and they did use their own lyrics (last time I looked, Celtic play in green and white and don't come from Eastlands).
With all due to respect for your group. I think what you are doing is just what Manchester City needs.
So ... When it comes to nicking songs. Celtic sings "come on you boys in green" and you only replaced the word "green" with "blue". Does that really feels original? Sure, the song can still work, but why don't you remake the whole song and make it more "City". If you know what I mean.
As well, to all of you that criticize this group. How are you thinking? No body have the right to judge what is right or wrong to use in the stadium. If they want a capo and a drum, fine. Why do so many of you cares? If you don't want to be a part of it then stay out. It's not up to anyone but Citizens themselves to decide what they are going to use in the stadium. If the club gives it the green light then be happy that there at least are a few fans that still want to improve the atmosphere instead of just going in here after every game to complain over the poor atmosphere.