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Katy Perry sparkles in sequined Marchesa at 'Trevor Live' event

<div class="meta image-caption"><div class="origin-logo origin-image "><span></span></div><span class="caption-text">Katy Perry attends the Trevor Project&#39;s &#39;Trevor Live&#39; in Los Angeles on Sunday, Dec. 2, 2012. (Getty Images for Trevor Project)</span></div>
December 3, 2012 12:00:00 AM PST