It certainly wasn't what the audience, or the judges, were expecting! Sister Cristina Scucci surprised everyone with her performance on Italy's version of 'The Voice.' You have to hear this!

When Sister Cristina walked on stage, I'm sure the audience was expecting something completely different. She wore her habit and a pair of very masculine black shoes. So the expectation would be something....spiritual, right?

Instead, she rocks out to the Alicia Keys hit, 'No One.' And let me tell you, this Sister can sing! She has an absolutely beautiful voice!

That voice is all the judges knew of her when she started singing, since they start out sitting with their backs to the stage. One of the best parts of this video is their reactions as they turn around to see a nun jumping around the stage. Priceless!

And we can't forget her supporters backstage. Three nuns who take enthusiasm to a whole new level!

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