Also lighting up the red carpet at the Met Gala? Singer Katy Perry, who literally glowed in a floor-length CuteCircuit gown, which gave off a fluorescent aura thanks to concealed LED lights stitched into its seams. "I think sometimes in fashion it can get a little stuffy so I wanted to lighten up!" Perry told the press. Stephen Lovekin/GettyImages.com - May 3, 2010
Week in Photos: May 1-8, 2010
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