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Miley Cyrus is saying she did NOT have her breasts enhanced!

The Hannah Montana star raised eyebrows when she stepped on the red carpet of the CNN Heroes tribute wearing a plunging Robert Cavalli gown.

After reports spread that Miley had gone under the knife, the 19-year-old singer Tweeted:

    "Thank you for the compliment, but these babies are all mine. I wish [people would] realize you don't have to be fake to be beautiful! I'm 19! BOOBS GROW, PEOPLE!"


Oh, Miley!