Charles Dharapak / AP Republican presidential candidate and former Massachusetts Gov. Mitt Romney sings "America the Beautiful" with Meat Loaf.

It's official! Meat Loaf has thrown his support behind Republican presidential candidate Mitt Romney in a big way. And lest anyone think the rocker isn't passionate about his endorsement, his performance at a Thursday rally in Defiance, Ohio, sure proves otherwise.

The singer joined country music stars Randy Owens, John Rich (who knows Meat Loaf well from their "The Celebrity Apprentice" days) and Big Kenny, as well as the presidential hopeful, for a particularly rousing rendition of "America the Beautiful."

The performance started off pretty standard, with Owens and Rich serenading the crowd in the traditional, if a bit staid, patriotic style. But soon Meat Loaf, who's not exactly known for holding back, decided to show his fellow singers and Romney, how it's done.

Channeling his trademark "Bat Out of Hell" enthusiasm (though most definitely not his "Bat Out of Hell" vocal stylings), Meat Loaf shouted out "Aaah! Go ahead now brother!" to Owens, before going ahead himself.

That's when the Grammy-winner's heartfelt wails began and continued straight through to the end of the number, despite looks of surprise, amusement and possibly concern from those who shared the spotlight with him.

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