"I am extremely concerned for you that those around you have led you to believe, or encouraged you in your own belief, that it is in any way 'cool' to be naked and licking sledgehammers in your videos," O'Connor writes. "It is in fact the case that you will obscure your talent by allowing yourself to be pimped, whether it's the music business or yourself doing the pimping."
The letter continues in what O'Connor says is "the spirit of motherliness and with love."
"You are worth more than your body or your sexual appeal," she says. "As for the shedding of the Hannah Montana image.. whoever is telling you getting naked is the way to do that does absolutely NOT respect your talent, or you as a young lady. Your records are good enough for you not to need any shedding of Hannah Montana. She's waaaaaaay gone by now.. Not because you got naked but because you make great records."
Read the full letter here.
Cyrus shot back at O'Connor's letter on Twitter saying, "Before Amanda Bynes.... There was...." along with a screenshot of O'Connor's ranting tweets.
What do you think of O'Connor's advice and Miley's response?