We're used to seeing Hayden Panettiere with her sophisticated mid-length bob casually down or scraped back in a bun, so we were surprised this week when we saw a whole new Hayden hair look. We can't imagine that she'd had her hair up for so long we didn't notice it grow four inches! Long, bouncy, wavy or straight, Hayden's new glam-over is a winner in our our opinion. But what do you think? Do you prefer the grown-up, in-between length, or the fun, LA beach look. Let us know what you think below.