Last December, just a few days after turning 17, Miley Cyrus got a tat under her teen breast that says, "whites only". No not really. It says, "just breathe". It's reportedly a tribute to a friend with cystic fibrosis and who must stare at her tits a lot.
Point being, Sunday she wore an open-back dress to the MTV Europe Music Awards in Madrid, and of course you could see the tat again. They're quite permanent, you know.