Watch Out, Katy Perry! Rose Byrne Is Bedding Your Fiancé Russell … But Is She Really As Bad As She Seems In 'Greek?'

Thu, June 3, 2010 5:13pm EDT by 1 Comment

Rose Byrnes

We can’t believe how comprehensively Rose Byrne sheds — and we mean sheds — her nice-girl image in Get Him to the Greek! Is it the real Rose … and a great acting job?

Rose Byrne, 30, plays her sexiest role yet in Get Him to the Greek alongside co-star Russell Brand, 34. In the film, Rose beds Russell (engaged to Katy Perry, 25) and seduces another (real-life) metal god, Metallica‘s Lars Ulrich!

But despite her character’s come-hither eyes, GQ says this is no instance of a good girl gone bad: “Oh no, I don’t like metal,” Rose tells the mag.

BFFs, check out these pics: Do YOU think Katy Perry has something to worry about? Or is Rose just a rose … just a, well, you get the idea.

— Nicole Karlis

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