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LOS ANGELES -- Carrie Underwood used the huge skirt of her gray dress as a digital projector during her Grammy Awards performance.

As she sang Blown Away and Two Black Cadillacs various images flashed on her dress.

They can do a lot of amazing things with projectors these days, she said backstage, holding her trophy for best country solo performance. We had a dress especially made. I said I should take that home and we can watch movies on it.

Underwood said she had to stand in a specific spot on the Staples Center stage to make it work.

It took a lot of precision, she said.

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