Miley Cyrus' abs for $15? Star's Pilates instructor Mari Winsor

The 19-year-old star credits Mari Winsor Pilates for her new found abs, practicing several times a week to maintain her fit figure.

Watch: Miley Cyrus' Body-Sculpting Workout

Two Pilates moves that gave Miley Cyrus her amazing abs – New York

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Miley Cyrus' Pilates Routine

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2016 Miley Cyrus and Mari Winsor support the Walk to Defeat ALS

Miley Cyrus' Pilates instructor defends her lean look

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10 Times Miley Cyrus Rocked Her Workout

Miley Cyrus wowed at Grammys with toned body — her workouts revealed

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