David M. Benett/Getty Images for Michael Kors

WHAT SHE WORE At a dinner in London celebrating Michael Kors, Rosie Huntington-Whiteley wore a black and chartreuse leaf-print dress by the designer and Jean-Michel Cazabat heels.

WHY WE LOVE IT White pumps and a bold red lip took this effortless look up a notch.
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Rosie Huntington-Whiteley

Rosie Huntington-Whiteley chose a black and chartreuse Michael Kors dress