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Look of the Week: Hayden Panettiere's Swept-Up Bun

Sometimes, a swept-up hairstyle can look outdated, but Hayden Panettiere was perfectly on-point at the Giorgio Armani menswear presentation on Tuesday.

The Nashville star amped up the volume at the crown of her head, and spun the rest of her hair into a simple ballerina bun. The result? A sleek update to a classic style.

Paired with an Armani bow-embellished sleeveless top and cropped black pants, this look is a major do.