A little late, but absolutely hilarious

Thank you, David Rothman, who tweeted this:

How the Grinch Stole Chanukah by Mike Toomey (Dr Demento's Basement Tapes)

I'd never heard of Grooveshark. Here's another I found thanks to David (because he shared the Irish Rovers doing Grandma Got Run Over by a Reindeer):

Finnegan's Wake by the Irish Rovers

The favourite song of theirs of mine will always be The Unicorn (I loved it as a child), but the Irish part of me can't help but laugh at good old Finnegan's Wake. :)