This week, 38-year-old actress Kate Hudson revealed that she has shaved her head for a role on a new project with singer Sia. Along with an image of new 'do, Hudson wrote on Instagram, "Freedom Compliments of @siathisisacting ?? #OurBeautifulDirector." Sia herself re-posted the pic to her own Instagram page, writing: "My girl @Katehudson being a delight on set.