You definitely won't be an epic fail when you show up to the party in this Sexy Katy Perry Last Friday Night Women's Costume! Each discounted set includes a dress and belt based Katy Perry's coming-out outfit in the video "Last Friday Night." The long-sleeved cocktail dress has a tight, hot pink top that sits off the shoulders. The lime green skirt falls to the upper thigh and has a faux-zipper running up the front. Hiding the seam between the top and bottom is the neon green wide belt, which can be tightened or loosened to best fit you. If you've been feeling a little too girl-next-door, slip on this costume for your next Halloween party and you'll be dancing on table tops in no time. Just be careful not to break the law. Complete the look with a Katy Perry Last Friday Night Adult Wig and Braces and a Set of Four Bangle Bracelets, sold separately on this site.