This is the Duchess of Cambridge, Catherine aka Kate Middleton aka the future Queen of England. There's a 250% chance you know exactly who she is.
You also probably know that her signature hair look is a long, bouncy blow-out so flawless that she looks like a Disney princess come to life.
In the past she's worn her hair in some beautiful updos, and also once got bangs, but the loose curls look is kind of her ~thing~.