She's Been: She's made hardly any missteps since she first started walking the red carpet -- and, as the face of Dior, there's a lot at stake in making sure she looks great. 

She'll Be: Runway perfect. 

She'll Wear: Something we might have already seen on the runway -- with glamazon model looks, she can pull it off. She's been wearing shades of blush and gunmetal of late, and they work well with her blonde hair, so we're expecting more of the same. 

Sideboob?: Possibly, but only if it's truly unique.