It appears that "Snow (Hey Oh)" by the Red Hot Chili Peppers will be the official theme song of WrestleMania this year. [source]
Any song but THAT song! Hell, I'll even accept Rise Against!
I might survive if WWE doesn't overuse it, like they did with "My Way" by Limp Bizkit (WM X-Seven) and "Big Time" by Peter Gabriel (WM 22).
Because people inquired, the aforementioned death scene: