This hairstyle is a great choice for girls who want to look simple, yet elegant. A chignon is a knot of hair at the nape of the neck, and it works well regardless if you have curly or straight locks. Celebrities like Jessica Alba, Beyonce and Julia Roberts have rocked this style on the red carpet, and they've all worn it in unique ways. That's what's so great about the chignon -- it's both classy and customizable. You can wear it pulled back tightly into a sleek bun, or you can have it assembled more loosely, with teased hair and pieces pulled out to frame your face. The side chignon is also a popular variation where the knot still sits low on the head, but your hair is situated on the side rather than the back. This beautiful, asymmetrical look is a modern twist on a timeless classic, and, yes, it looks great on the dance floor.