So many before-and-afters, so little time.

In this week's round-up of the most surprising celebrity transformations, we've got a few side-by-side photos to highlight the changes made by a Broadway star, a reality TV veteran and an Olympian. Prepare to be amazed.

Plus, Drew Barrymore has kicked off the next phase of her career in spectacular fashion, while Priyanka Chopra showed off her new hairstyle that may just make you consider your own shake-up for the upcoming fall season.

And did we mention Saturday Night Live has tapped quite the A-lister to take on a major political figure for its big return next month? (We can't wait to see how he pulls it off!) Finally, the offspring of a Bravo reality star is opening up about the lifestyle shift she and her husband made that completely changed their lives.

Dancing With the Stars Celebrity Weight Loss

Check out the most surprising celeb transformations of the week...

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