Katy Perry

Katy Perry sparkled at the Billboard Music Awards in an ethereal gown by Blumarine, punctuated with violent violet lips and, unsurprisngly, violet hair.

Photo by Denise Truscello/Wire Image May 22, 2012

Bringing sexy back

It's a new trend: stacks of celebs from Katy Perry to Kate Bosworth have been spotted in sexy backless ensembles.