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Miley Cyrus is rockin' a sexy, tight bod, and she's happy to show it off!

The 20-year-old songstress posted the above photo from her trip to Costa Rica while wearing a vintage Rad and Refined tube top and super short jean shorts.

Cyrus, who follows a gluten free diet, Tweeted:

    "Tooooo. Muuuuch. Pizzzzzza. back on the health train tomorrow. #cheatnight. You cant always control what goes on outside. But you can always control what goes on inside. I now remember why I never eat pizza. It makes me feel like s**t. #glutenized"


No worries, Miley. You look fabulous!