Miley Cyrus's Pilates Pays Off: You'll Never Believe How Slim and Trim She Looks! (PHOTO)

When she's not busy adopting puppies with her boyfriend, singer/actress Miley Cyrus can be found leaving the gym (barefoot!), or heading into a Pilates class in barely-there workout gear.

And, proving that her Pilates sessions are working, Miley was spotted looking more fit and toned than ever in Miami yesterday (May 16). Can some lunging, stretching, and breathing really whip someone into tip-top shape? (Seriously, what do they do in those classes?!)

Then again, the young starlet has been pretty open about her gluten-free diet, so maybe that has something to do with her petite frame. More power to ya, MC!

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Follow Alissa Kombert on Twitter @AyeKayArt.