Over the weekend at a presentation of her new flick Tron Legacy in Tokyo, Olivia Wilde sported this seriously tight, top-of-the-head bun. Typically, Olivia wears her hair in a loose updo or in soft, cascading waves, so this slick look is definitely a departure from her norm. Tron, as you may know, is science fiction at its finest, so perhaps Olivia's just mirroring her role in the film with a futuristic style. Do you like it?