29. Katy Perry
Biggest accomplishment this year: Reprising her voice acting role as Smurfette in The Smurfs 2
Everyone knows about Katy Perry. She has branched out into pretty much all areas of the entertainment industry, and this year alone has made headlines on a number of fronts. She'll be releasing her fourth studio album in September, a work which she says will be a lot darker than her previous efforts. She also will be reprising her tour de force performance as Smurfette in The Smurfs 2, thus far her only foray into cinema where she didn't appear as herself. She also released her third fragrance (Killer Queen), something we're not totally sure the world was clamoring for. Since Perry was named Men's Health's Sexiest Woman of 2013, though, we're also guessing most people won't mind.