Then there's the non-squirrel version...

The song is Taivas Lyö Tulta by Finn heavy-metal band Teräsbetoni. Apparently, there's a serious question in Finland of whether they're a corny over-the-top metal band or if they're a really subtle parody act. "Teräsbetoni" is Finn for "Reinforced Concrete." They could be the live-action predecessors of Dethklok.