The British Fashion Awards just went down, and brought out our fave style setters—Alexa Chung, Kate Moss, and the always adorable Harry Styles. But we were laser-focused on one thing: Sienna Miller's pink locks. The Brit babe isn't the first to rock a 'do with a neon hue (Lauren Conrad and Rachel McAdams are two starlets who've tried the trend), but the rose gold highlights on the center of her head were a sophisticated and subtle change. Paired with an emerald Burberry gown, this was a hair dye home run. Pink…it's not just for your old My Little Pony dolls. So... would you take the plunge?