When It Comes to Sexy Halloween Costumes, Jennifer Lopez Is an Endless Source of Inspiration

Jennifer Lopez rang in the new century with a stunning look that we still remember 15 years later. The infamous Versace dress at the 2000 Grammys was the epitome of sexiness that year and for many more to come.

• What to wear: A tropical-print dress with a plunging neckline.
• How to act: Walk with a glowing smile and make sure you're oozing confidence. If you're wearing a dress with that much skin showing, you just have to rock it.