Miley Cyrus' eye-popping cleavage at Sunday's CNN's Heroes 2011 awards event prompted speculation from numerous surgeons that she has gotten breast implants, and now the teenage singer is responding on Twitter, claiming she is all natural.

"Thank you for the compliment but these babies are all mine. I wish they'd realize you don't have to be fake to be beautiful!" the 19-year-old Hannah Montana star tweeted on Tuesday.