Manchester and Liverpool's rivalry was originally based on socio-economic factors, and was more of a love/hate relationship like two squabbling siblings. There was an intense but friendly rivalry between the football fans, my oldest brother went to Anfield in the 60's and stood on the Kop as a Utd fan, no problem. It's only when hooliganism raised it's ugly head that the rivalry took on a violent turn, which todays Johnny-come-latelys feel they have to aspire to. As for 'nicking' songs, it's hardly a recent trend, fans have always turned around other fans songs, or adapted them to suit their team, does one set of fans have a copyright? The Torres song is based on 'When Johnny Comes Marching' tune, which Utd have sang about John O'Shea for about 8 years, but I wouldn't claim that song as Utd's. The Mascherano song started in Italy. And as for YNWA?...