Superheroes don't just serve the community by cracking down on crime and taking out the supervillain trash- they also try to do a bit of community outreach whenever possible.
They help the less fortunate, escort kitties down from trees, bring lost kids and puppies home and provide the muscle for urban renewal programs.
But, as this comic by Mike Maihack shows, Batgirl and Supergirl like to do a different kind of community outreach around Christmas- by going out caroling!
-Via Geeks Are Sexy