From boob jobs to botox, Hollywood stars love to go under the knife, but what we want to know is who took Heidi Montag's plastic surgery beauty queen title this year?

Was it Kate Hudson and her oh so subtle breast augmentation? The botox that Kim Kardashian admitted to getting earlier this spring? Lisa Rinna's lip reduction? Lindsay Lohan's increasingly plump pout? Or was it Megan Fox's dramatic transition from brunette bombshell to something as monstrous as the beast in Jennifer's Body?