Oh it's on alright. It. Is. ON.

Quick recap? Sinead O'Connor penned an unprecedented open letter to Miley Cyrus asking her to reconsider her approach to her performances and career, saying that she was better than what she was doing.

And then, instead of accepting said statement, or taking the higher road and moving past it, Miley decided to mock not only Sinead O'Connor but also Amanda Bynes for having mental health issues.  

Well ring that bell, 'cause it's time for round two. And guess what? Sinead is pissed.

Banging out 'Another Open Letter To Miley Cyrus', O'Connor is on the warpath and went on the offensive, saying that taking her on is 'even more f*ckin’ stupid than behaving like a prostitute' and called her an 'an anti-female tool of the anti-female music industry' and 'a danger to women'.

Finally, she finishes with by telling Cyrus 'You could really do with educating yourself, that is if you’re not too busy getting your tits out to read.'

Ladies and gentlemen, pick your corners. This one is going to be better than Lauren vs. Heidi (you know MTV or someone is making those t-shirts right now).

Full text once again of Sinead's latest open letter, because her site doesn't seem to be able to handle all the attention. Again NSFW language abounds (but that's why you're here isn't it).

ANOTHER OPEN LETTER TO MILEY CYRUS
Miley… Really? Who the f*ck is advising you? Because taking me on is even more f*ckin’ stupid than behaving like a prostitute and calling it feminism. You have posted today tweets of mine which are two years old, which were posted by me when I was unwell and seeking help so as to make them look like they are recent. In doing so you mock myself and Amanda Bynes for having suffered with mental health issues and for having sought help.

I mean really really… who advises you? have you any idea how stupid and dangerous it is to mock people for suffering illness? You will yourself one day suffer such illness, that is without doubt. The course you have set yourself upon can only end in that, trust me.

I am staggered that any 20 yr old woman of the 21st century could behave in such a dangerous and irresponsible manner as to not only send the signal to young women that its ok to act like prostitutes but also to the signal that those who have suffered or do suffer mental health problems are to be mocked and have their opinions invalidated. Have you no sense of danger at all? or responsibility? Remove your tweets immediately or you will hear from my lawyers. I am certain you will be hearing from all manner of mental health advocacy groups also. It is not acceptable to mock any person for having suffered.

It is most unbecoming of you to respond in such a fashion to someone who expressed care for you. And worse that you are such an anti-female tool of the anti-female music industry. I hope that you will apologise to Amanda Bynes and to any person who has been wounded by your mockery of those who have suffered. And I hope that you will wake up and understand that you in fact are a danger to women.

Furthermore you posted a photo of me tearing the pope’s photo .. as if to imply insanity.. by doing so all you have achieved is to expose your staggering ignorance. I suggest you read The Philadelphia Report, The Boston Report, all the reports which will illuminate for you why that action of mine remains sane and valid. By mocking it you mock every child who suffered sexual abuse at the hands of priests and had it covered by the Vatican. You could really do with educating yourself, that is if you’re not too busy getting your tits out to read.