By Caitlin Petreycik
Updated Apr 25, 2012 @ 4:20 pm
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Kate Middleton, Matthew Williamson
Credit: Dave M. Benett/Getty Images; Courtesy of Matthew Williamson

Catherine, Duchess of Cambridge added an extra dose of shine to her peplum dress! The royal stopped by the London premiere of African Cats today, where she debuted a slate gray Matthew Williamson design with a sparkly tweak—an extra strand of turquoise trim around the collar to match the cuffs. Tell us, what do you think of the royal's colorful update?