Well, they probably are drunk, but they also have scouser accents that can only be regarded as English in the very loosest sense.
Canucks fans doing a capella O Canada is pretty rousing. The SSB before the 2009 US/Costa Rica World Cup qualifier at RFK was beyond thunderous.
You'll Never Walk Alone always sounds like it's being sung by drunk people. Just the nature of a huge crowd singing it, as they slur the words. But they are pretty epic, but I have no clue how you would build a tradition like that in American sports.
