Ariana Grande sparkled in a floor-length scarlet dress on the 2013 American Music Awards red carpet. It's not often that the singer opts for something this long, but we love it! Since there is a lot of sparkle going on in the sequin-covered gown, we like that Ariana kept her makeup and accessories minimal. Her black clutch is the perfect accent to the trim on the dress.

Simply radiant.

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Her hair is loose and wavy -- perfect for this dress!

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Wowzas! Check out the rock on her finger!

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