I hope I'm not too far behind this. It looks like it's being going on a couple months. They take news coverage, and auto-tune it. Add themselves rapping, cut it all together, and you've got Auto-Tune the News. The big star is Katie Couric, whose voice is made for auto-tuning apparently.
It starts slowly but from 5 on they've all been pretty amazing in my opinion. So start there maybe.
All names are off the top of my head. I missed some, and may have spelled some wrong.
Auto-Tune 1 (04/11/09): Newt Gingrich, Robert Gates, Jim Nantz, Joe Biden, Wayne Ellington Auto-Tune 2 (04/21/09): Ruth Marcus, Kiran Chetry, Sean Hannity, Hillary Clinton, Katie Couric Auto-Tune Flashback: Barack Obama, Katie Couric, Bill O'Reilly, Brigitte Gabriel, Larry Kudlow, Glenn Beck, a cow Auto-Tune 3 (05/15/09): Elisabeth Hasselbeck, Rachel Maddow, Ron Paul, Hillary Clinton, Katie Couric, Dick Cheney Auto-Tune 4 (05/29/09): Joe Scarborough, Barbara Boxer, Joe Biden, Katie Couric, Newt Gingrich, Jay Inslee, monologue from the angry gorilla Auto-Tune 5 (06/19/09): Joe Biden, Steve Buyer, Rachel Maddow, Katie Couric, a bunch of people on Fox Business Channel Auto-Tune 6 (07/11/09): Michele Bachmann, Nancy Pelosi, John Boehner, Sarah Palin, Chris Wallace, Bill Kristol, Jennifer Loven, Katie Couric, Brian Oxman Auto-Tune 7 (08/03/09): Ariana Huffington, Donna Brazile, Pat Buchanan, Al Sharpton, Dan Lungren, Katie Couric
EDIT: Whoops. In my defense, I kind of stopped reading half way through when I realized I wasn't going to listen to all those covers.