In a word: No. That's basically Miley Cyrus' response to rumors that she has undergone breast enhancement surgery.
The chatter took off yesterday after Star Magazine published quotes from supposed professionals, all of whom studied Miley's cleavage at a special CNN event this week and concluded that she most likely got a boob job.
"Thank you for the compliment but these babies are all mine," the singer has Tweeted. "I wish they'd realize you don't have to be fake to be beautiful!"
We don't exactly feel comfortable discussing a 19-year old's chest, so you may study the photos above (left, which prompted this rumor; right, which was snapped in July 2010) and decide for yourself:
Did Miley get a boob job?