From Jack's link, this is pretty close to what is on the tea towel, given to me as a birthday present from my auntie who lives in Christchurch and whom some other relatives encouraged to repatriate, after the 2011 earthquake there; and, from the translation, we can tell that it is a pretty good motivator at the start of a rugby game!

Ka mate, ka mate! ka ora! ka ora!
Ka mate! ka mate! ka ora! ka ora!
Tenei te tangata puhuruhuru
Nana nei i tiki mai whakawhiti te ra
A, upane! ka upane!
A, upane, ka upane, whiti te ra!

'Tis death! 'tis death! (or: I may die) 'Tis life! 'tis life! (or: I may live)
'Tis death! 'tis death! 'Tis life! 'tis life!
This is the hairy man
Who summons the sun and makes it shine
A step upward, another step upward!
A step upward, another... the Sun shines!