Last night in New York City, 31 year old Sienna Miller arrived at the Crosby Street Hotel for a special screening of Just Like A Woman where she stars as a belly dancing Chicago housewife. Looking beautiful in a black sweetheart, pencil fitting black Burberry dress that she paired with black shoes and a black and red handbag, her fashion style was simple and seemingly effortless thanks to her flattering, form fitting number. But what we love (and also sorta hate) about Sienna's quintessential boho style is that her beauty look is also equally effortless looking. With her blonde hair brightened to perfection, but not overly light, she swept the lengths up in a high ponytail and left her semi-thick fringe looking both blunt and wispy. The hairdo is youthful, playful and shows off her long neck and her fresh-rosy face. Here's what you need to create this super simple style at home on your own.