Abergel is always an expert when it comes to hair accessories (so expert, in fact, that he collaborated on a collection with Lelet NY a few years ago), and this style that he dreamed up for Theron — using a headband he designed with Louis Vuitton specifically to match her gold dress — is one of his crowning achievements, literally.
Headbands can be tricky, even on long hair; too big, too far forward, too embellished, and you can instantly look a little goofy. The secret to why this looks so damn chic is where it's placed on her head. "It literally sits behind the ear so that it's more like a crown than it is a headband," explained Abergel, who also added some face-framing extensions to add softness to the look and balance out the height of the band.