all for a good cause

Doesn't it just warm your heart?

Bing Crosby - Dear Hearts and Gentle People (from The Definitive Collection, 2006) - A song that just screams out for ironic appropriation (see also the recently unveiled Fallout 3 trailer), especially in light of some of the allegations made about Der Bingle's domestic life.

The Breeders - Happiness is a Warm Gun (from Pod, 1990) - Only a Boston-based alt-rock side project could be this precise.