McDonalds is partnering with Rovio for a bit of corporate synergy - in China. Playing Angry Birds inside Chinese McDonalds restaurants will unlock special in-game power-ups and "hidden game modes" available exclusively in the fast-food establishment. In addition, patrons will have the opportunity to vote on the location to be home to a real Angry Birds slingshot across the Golden Arches sign.

If you've read this far, you definitely want to hear the Angry Birds sing the McDonalds "I'm Lovin' It" song. You'll find that in the video above.