Sienna Miller is forever our constant source of hair inspiration. Working every colour from rose gold and peach to the perfect beachy blonde, not to mention a brief flirtation with being a brunette, there's no hair style or colour Sienna can't pull off.
Don't even get us started on that game-changing bob. We're pretty sure we weren't the only ones to take in a picture of Sienna's perfect tousled lob to the hairdressers.
Check out every one of Sienna Miller's epic hair looks right here...