Posted into the Britania thread, is a great song for audience participation, simple enough that the most drunken of footballers can sing it.

Rule Britannia

Tune: Rule Britannia

Rule Britannia, marmalade and jam,
Five Chinese crackers up your asshole,
BANG, BANG, BANG, BANG, BANG!

Rule Britannia, marmalade and jam,
Four Chinese crackers up your asshole,

BANG, BANG, BANG, BANG!

Rule Britannia, marmalade and jam,
Three Chinese crackers up your asshole,

BANG, BANG, BANG!

Rule Britannia, marmalade and jam,
Two Chinese crackers up your asshole,

BANG, BANG!

Rule Britannia, marmalade and jam,
One Chinese cracker up your asshole,

BANG!

Rule Britannia, Britannia rules the seas,
Britons never, never, never shit green peas.