It is just so recognisably a Manc anthem though. It is strongly associated with Manchester, and the band who sings it have a connection with Manchester City. It doesn't really matter in the grand scheme of things I suppose, but I have heard a couple of non-Villa supporting mates question why we sing it, for similar reasons to those.
How about The Benny Hill theme tune with everyone running after each other up and down the stands
Under the Sun - Black Sabbath
The bells are ringing for the claret and blues The fans are singing for the claret and blues