Another look that has recently escalated in popularity is the ballerina bun. Like the sleek ponytail, this style requires long hair, but it doesn't have to be straight. It differs from the chignon in that instead of sitting low, near the neck, it sits on the top or back of the head, just like the bun on a -- you guessed it -- ballerina. Like the chignon, though, you can wear a sleek ballerina bun or a messy one with pieces pulled out or around your face. To get this look, either coil your rolled hair around a ponytail and pin it into place, or use a sock bun to get a larger, 1960s' style 'do. Try out each method before the big night to see which one you like best.