BEFORE & AFTER: 10 Major Celeb Slimdowns Revealed!
From structured weight-loss programs to good ol' smaller portions -- ET's got your look at ten major celeb slimdowns. Click through the pics to see the stars' stunning before-and-after snapshots.
In the first jaw-dropping before-and-after, Kelly Osbourne shows off her body transformation. She reportedly told Us Weekly earlier this year that exercising three times a week and eliminating starchy carbs is how she shed a whopping 42 pounds.