Byrne, who we have only ever seen with some variation of brown hair, wore her medium length platinum blonde strands in a straight, layered style. Her dark roots were slightly smudged reminiscent of the toasted coconut blonde hair trend. Although it’s quite possible The Bridesmaids star’s new hue is already growing out.
She paired her dramatic hair change with an equally eye-catching frock. Byrne wore a shimmering metallic dress from Les Coyotes de Paris, according to Entertainment Tonight. The outlet also speculates that she dyed her hair for a mysterious new role to which we say: probably.
What we do know is that brunettes looking to take the platinum hair plunge should take note. This is how it’s done.
This article originally appeared on InStyle.