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"Jennifer Lopez is on a hot streak when it comes to Fashion Faceoffs--she beat Demi Moore with 71% last time she wore Lanvin, whooped Heidi Klum with 57% favorability in Louis Vuitton, and made Kirsten Dunst&amp;#x27;s Rodarte look utterly forgettable with 61% of the votes. So can she pull it off again against Rihanna? It&amp;#x27;s up to you! Rihanna was hanging out in Hollywood earlier this week in this one-sleeve black dress from Lanvin&amp;#x27;s spring 2010 collection. She wore nude pumps to make her legs look even longer, and left the rest of the accessories to a minimum--who needs &amp;#x27;em when you&amp;#x27;ve got that gorgeous scarlet hair? Sign up for Glamour.com&amp;amp;#8217;s Style Tips of the Week and Beauty Tip of the Day newsletters! The reigning queen of the Fashion Faceoff, Jennifer Lopez, wore the same dress back in April to the London premiere of The Backup Plan. She took her styling cues straight from the runway, opting for the big statement necklace the dress was originally shown with and a donut-style updo. Who wins this Fashion Faceoff? Is Jennifer Lopez a lock again, or is Rihanna giving her a run for her money? Cast your vote now, then discuss! Who wore this Lanvin dress better?customer surveys Have even more fun with Fashion Faceoffs: - Keri Hilson vs. Liv Tyler in Givenchy - Taylor Swift vs. Kristen Stewart in J. Mendel - Whitney Port vs. Brooklyn Decker in Alice + Olivia Glamour stylists answer your fashion questions at WhatToWear.com. Ask away! You could win $50,000 just for registering or logging in to Glamour.com! Visit Shopglamour.com for cute stuff starting at just $10! Enter the latest Glamour sweepstakes! "^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.glamour.com/fashion/blogs/dressed/2010/07/fashion-faceoff-rihanna-vs-jen>