Gemma Arterton's Petite Chignon As soon as your hair gets long enough to pull into a tiny ponytail, a messy bun like Gemma Arterton's becomes an option. Simply sweep the hair back into a ponytail with lots of hair spray, coil it as best you can (letting the short hairs pop out as much as you like) and pin at the nape of the neck with plenty of grips. Image Source: Getty / Tim P. Whitby