With celebrity lives under the microscope, it's tough to miss when a star gains or loses a few pounds. But what tends to be more fascinating to the public is when a celebrity seriously slims down and looks completely different.
Recently many stars have gone through major weight transformations, be it for a role or otherwise, and when placed next to their former selves, they're nearly unrecognizable.
Check out our slideshow below of stars whose weight loss both shocked and impressed us.
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Nicole "Snooki" Polizzi
Drew Carey
Matthew McConaughey
Christian Bale
50 Cent
Star Jones
Randy Jackson
Chaz Bono
Christina Aguilera
Kelly Clarkson
Kirstie Alley
America Ferrera
Rihanna
Marc Jacobs
Khloe Kardashian
Carson Daly
Christina Ricci
Courtney Love
Hilary Duff
Kelly Osbourne
Lea Michele
LeAnn Rimes
Miley Cyrus
Nicole Richie
Raven Symone
Seth Rogen
Jenni 'JWOWW' Farley
Jennifer Hudson
Jonah Hill
Jordin Sparks
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