Popsugar Fashion Katy Perry Katy Perry's Grammys Dresses The Katy Perry Costume Change You Might Have Missed January 27, 2014 by Hannah Weil McKinley View On One Page Photo 1 of 4 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 1 Katy Perry's Red Carpet Look For her grand arrival, Katy Perry channeled music itself with notes printed down her sheer Valentino Couture ball gown from the Spring 2014 collection that hit the runway only four days prior. Previous Next Start Slideshow Katy PerryGrammy Awards