Like most denizens of the internet, I spent copious amounts of time on YouTube, infringing on copyrights and laughing at things that 4th graders find funny.
So when a friend linked me to the series, "Auto-Tune The News", I was surprised that I'd never heard of it. It's pretty much exactly what it sounds like.
Click, enjoy. (The rest of them are in the links on YouTube.)
(P.S. This one's my favourite.