Thanks for that info, DaveS & McGrath of Harlow.

I'll check out that link.

And as to football theme songs, the Pittsburgh Steelers {American football team} have a number of "fight songs", including the most widely known 2004 song "Here We Go Steelers".

Click http://www.post-gazette.com/pg/06020/641317.stm [Steelers fight songs to help fans sing team to victory; Friday, January 20, 2006; By John Hayes, Pittsburgh Post-Gazette] for an article about this "tradition".

There are also audio links to four of these songs.