Miley Cyrus, Taylor Swift

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Miley Cyrus and Taylor Swift are friends—they came as each other's dates to the Grammys—and duet partners with tonight's performance of "Fifteen," a track from Taylor's most recent album, Fearless.

But for our purposes, they're also fashion frenemies, waltzing down the red carpet in let's-keep-the-peace matching outfits. We're guessing there was a coin toss to decide who got to wear the plunging Kaufman Franco neckline and who would wear the asymmetrical Max Azria frock.

So which girl do you think got lucky with the better black dress? Play our Red Carpet Pose-Off Game pitting Miley vs. Taylor, plus plenty of showdowns between more of your favorite fashionistas, and you could even win a fabulous prize.