Miley Cyrus mentioned in the latest issue of Rolling Stone magazine that she took inspiration from Irish singer Sinead O'Connor's 1990 'Nothing Compares 2 U' music video for her own video for recent hit 'Wrecking Ball'. This got back to O'Connor who took it upon herself to set Miley Cyrus straight in regards to her recent tawdry behavior.

O'Connor wrote an open letter which she posted on her personal website telling Cyrus that she cared about her and felt it necessary to warn her not to let herself get exploited by the music industry which is only after profits and doesn't care about her well-being.

In the 1,045 word letter, she wrote "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". She told Cyrus "... you have enough talent that you don't need to let the music business make a prostitute of you. You shouldn't let them make a fool of you either. Don't think for a moment that any of them give a flying f**** about you. They're there for the money..."

Cyrus did not take this well and turned around and tweeted several insulting messages about O'Connor, including a screen grab of a series of desperate messages O'Connor made two years ago during a period of mental illness, and a well-known image of O'Connor ripping up a photo of Pope John Paul II. She also made a reference to Amanda Bynes, implying that both were crazy. O'Connor responded, but this time with daggers out. She attacked Cyrus for bullying the mentally ill and asked that she remove the tweets, or else face legal action.

Cyrus then tweeted that she was too busy to reply to her letter, but would be happy to meet in person.

In a third letter, O'Connor said she had no desire to meet, demanded an apology and warned Cyrus that she was well on her own way to being called crazy by the media. O'Connor added that when Cyrus's time does come, she'll defend her, bu