In the mind of a teenage girl, prom night is a moment when everything should be just right -- especially her hair, makeup and dress, according to Amy Astley, editor in chief of Teen Vogue.
* Update your look by wearing a dress that is to the knee, tea- length or a minidress. These styles are modern and will make it easy to dance and enjoy the night. Body-conscious floor-length dresses, though popular on the red carpet, limit movement and your ability to dance.
* Expose your shoulders. It's a sexy look without revealing too much skin. Strapless or spaghetti strap dresses are a tasteful way to show off a young woman's neck and face.
* Define the waist. Show your shape with a body defining bow, sash or cummerbund. You can even buy a piece of ribbon or fabric and make a colorful belt for your dress.
* Have fun with jewelry. Pile on the costume pearls -- long strands, short strands or both. You can find inexpensive pearls at a thrift store or costume jewelry shop. Brooches are great to pin not just on your dress, but also to a bag or in your hair.
* Headbands add a feminine and whimsical touch to this year's prom look. You can simply tie a bow in your hair or, for a more dramatic goddess look, try a shimmery headband.
* Metallic shoes. Slingback, strappy metallic heels go with every dress and will add a touch of sparkle to your look. Don't fall into the trap of dyeing shoes to match a dress.