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Miley Cyrus

NEW YORK, NY - FEBRUARY 14: Miley Cyrus backstage at the Marc Jacobs Collection Fall 2013 fashion show during Mercedes-Benz Fashion Week at New York Armory on February 14, 2013 in New York City. (Photo by Dimitrios Kambouris/Getty Images for Marc Jacobs)

Sexy Celebrity Abs

Go on a celebrity ab-venture with stars from Justin Bieber to Julianne Hough.