On a side note, the players were already on the pitch lined up before it was started, whoever's in charge of playing the song needs a good kick up the arse.
It was moved to when the players are out onto the pitch to increase the atmosphere just before kick-off as it was felt there was a little bit of a lull after YNWA.
I think it was one of the first things John Henry and his team changed, but I may be wrong.